An auto repair shop charged Mrs. Baker $75 per hour, plus $49 for parts to fix her car. The total bill was $274. How many hours of work were done on Mrs. Baker’s car?
A.5 C.3
B.4 D.2

C) 3

Step-by-step explanation:

First we need to subtract the one-time payment for the car parts from the total bill: $274-$49=$225

Now we can find out how many hours of work were done. To do so we set up an equation like this:

(total bill) ÷ (amount per hour) = (How many hours of work)

Plug in your numbers:

$225 ÷ $75 = 3

So there were three hours of work done on Mrs.Bakers's car.

5

step-by-step explanation:

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110