Aplumber charges $55 per hour plus a $50 service charge. kevin hired the plumber to install a new hot water heater. what are the total charges if the plumber took 4 hours to complete the installation?

The total charges if the plumber took 4 hours to complete the installation is $270.

Step-by-step explanation:

Given : A plumber charges $55 per hour plus a $50 service charge. Kevin hired the plumber to install a new hot water heater.

To find : What are the total charges if the plumber took 4 hours to complete the installation?

Solution :

A plumber charges $55 per hour plus a $50 service charge.

i.e., The charge in 1 hour= $55

Extra service charge = $50

We have to find charge in 4 hours is

The charge in 4 hour =

Total charge = Charge in 4 hour+ Service charge

Total charge = $220 + $50

Total charge = $270

Therefore, The total charges if the plumber took 4 hours to complete the installation is $270.

b. astronomers

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.