Maria is comparing the prices of two window cleaning companies. company a charges $6 per window and an additional $12 as service charges. company b charges $5 per window and an additional $15 as service charges. part a: write an equation to represent each company's total charges for cleaning a certain number of windows. for both equations (one for company a and one for, define the variable used. part b: which company would charge less for cleaning 8 windows? justify your answer. part c: how much money is saved by using the services of company b instead of company a to clean 6 windows? (3 points)

Part A: x is the number of windows

company A=6x+12

companyB=5x+15

Part B

company B

Part C

$3

Step-by-step explanation:

Part B

A 6*8+12=60

B 5*8+15=55

Part C

(6*6+12)-(5*6+15)=3

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.