The plumber charges a service fee of $45 when he comes to your house. He also charges $25 per hour while he does the repairs. The total bill was $400. Which equation represents this situation? *

Step-by-step explanation:

There is a flat fee of $45 which will be added to his $25 per hour rate.

Let h represent the hours he worked.  The total of final bill is $400.

45 +  25h=400

-45               -45

         25h=355

           25    25

Therefore h =14.2 hours

7

step-by-step explanation:

yuo ned the activity or vertical angle of the form of 1,7 but 2,2 has a c4,2 as it verticie so i not have a car

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2