Pls Answer this using Algebraic expressions

Answer:

a) A total of 27 parents will receive a call on the third round of calls. b) A total of 39 parents would've been called by the end of the third round of calls. c) There would have to be a total of between 5 and 6 rounds

Step-by-step explanation:

Every time the total number of parents call 3 people, the number of parents tripled in every round.

3 to 9 to 27 to 51 to 153 to 459

Since 153 and 459 are between 5 and 6 rounds, the phone calls will stop between those 2 rounds.

Choose the following ratios as a decimal: 20 correct out of 25 problems
.8
.25
.20
.08

Matt drank 2.5 bottles of water yesterday. Each bottle contained 1.5 liters of water. What was the number of liters of water Matt drank yesterday?

Choose the following ratios as a fraction: 20 correct out of 25 problems (three are correct)

6/8
4/5
40/60
80/100
20/25

Write an equation for the following graph.

What is the radius and diameter of the following circle? 4.2cm Please help

Reflect on your participation in course discussions. Evaluate how well you explain your thinking and how well you respond to other people’s ideas about math. How can you improve in these areas? i dont understand the wording of this question, can sombody help me out and summarize it for me

SOLVE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Is this right if not tell me because my teacher grading my work this weekend

The coordinates of a point on a coordinate grid are (−1, 5). The point is reflected across the x-axis to obtain a new point. The coordinates of the reflected point are (1, −5) (−1, 5) (1, 5) (−1, −5)

Find the distance between (6,3) and, (6,-5). BRUH IT DIDNT EVEN GIVE ME A CHART??!?!! who ever answer ill give 15 points pleaseeeee

Find 15 out of these numbers: 4,3,9,7 (You can use any symbol. meaning these: +, =, ×, ÷, BUT, you can not use the same number twice.)

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Whoever answers first i'll mark you brainilest!

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Good luck!!

help me plss............................................

I need an answer asap

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A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours?
Most explained gets brainliest!!!!!!!

What is the GCF of 32a^3 b and 16ab^2?

Sylvie finds the solution to the system of equations by graphing. y = A system of equations. y equals StartFraction 2 over 3 EndFraction x plus 1. y equals negative StartFraction 2 over 3 EndFraction x minus 1x + 1 and y = x – 1 Which graph shows the solution to Sylvie’s system of equations? A coordinate grid with 2 lines. The first line passes through the points (negative 1.7, 1.57), (0, negative 1), and (2, negative 4). The second line passes through the points (negative 1.7, 1.57), (0, 1), and (3, 0). A coordinate grid with 2 lines. The first line passes through the points (negative 1.02, 0.63), (0, negative 1), and (2, negative 4). The second line passes through the points (negative 1.02, 0.63), (0, 1), and (3, 2). A coordinate grid with 2 lines. The first line passes through the points (negative 1.5, 0), (0, negative 1), and (3, negative 3). The second line passes through the points (negative 1.5, 0), (0, 1), and (3, 3). A coordinate grid with 2 lines. The first line passes through the points (negative 1.71, 0.14), (0, negative 1), and (3, negative 3). The second line passes through the points (negative 1.71, 0.14), (0, 1), and (2, 2). Mark this and return

HELP I'LL GIVE BRAINIEST.
A rocket is launched atop a 101 foot cliff with an initial velocity of 116 ft/minute. The path of the rocket can be modeled by the function h(t) = −16t^2 + 116t + 101.

a. When will the rocket hit the ground?

b. What is the maximum height of the rocket?

What is the equation in point-slope form of a line that passes through the points (−4, −1) and (5, 7)?
y+1=87(x+4)
y+1=89(x+4)
y−1=89(x−4)
y+4=98(x+1)

Express the missing divisor using a power of 10. Explain your reasoning using a place value model. 7,650 ÷ ___ = 7.65 *

a survey in a nature reserve found 4,480 aspen trees in an area of 320 square miles. witch rate best represents the relationship between the number of aspen trees and the area of nature reserve

what is the value of this expression 1/2 (m-4) · n when m = 12 and n = 1/4
A) 1/2
B) 1
C) 2
D) 7/2

help:) pls last question

Help lol i need help with this its due at 9:00 pm

The seventh-grade class is building target areas for a PE activity. The bases for the game will be circular in shape. The diameter of each circle is 5 feet. Approximately how many square feet of the turf needs to be painted for a base circle? Explain your resoning.

1. 15.7 square feet
2. 19.6 square feet
3. 42.8 square feet
4. 78.6 square feet

What number is 40% of 25?

The points with coordinates that are _____ do not make sense, since you will not buy _____ and you are buying them _____ a week.

how do you find a decimal form

A 12 oz bag of chocolate chips cost $3.60. A 20 oz bag of chocolate chips costs $4.40. Which size is the better buy?

[PICTURE ATTACHED] HELP

is this correct? i dont really understand it

i just picked math bc i dont know which subject it is and science isnt an option

-12=3(w-8)+3w what is w