Question

2 to paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for each hour of labor.
a. how much would the painting company charge to paint a house that needs 20 hours of labor?
a house that needs 50 hours?

Explanation:

Step1: Define cost formula

Let $C$ = total cost, $h$ = labor hours.
$C = 500 + 50h$

Step2: Calculate for 20 hours

Substitute $h=20$:
$C = 500 + 50\times20 = 500 + 1000 = 1500$

Step3: Calculate for 50 hours

Substitute $h=50$:
$C = 500 + 50\times50 = 500 + 2500 = 3000$

Answer:

$1500, $3000