Answer:
A. We can write a function to represent the cost of each quote using the information provided.
For Decks and More:
C(h) = 1800 + 70h
Where C is the cost and h is the number of hours of labor.
For Just Decks:
C(h) = 2000 + 50h
Where C is the cost and h is the number of hours of labor.
B. To determine which company Aaron should use, we need to substitute the estimated number of hours into the functions for both companies and compare the total costs.
For Decks and More:
C(18) = 1800 + 70(18) = 1800 + 1260 = 3060
For Just Decks:
C(18) = 2000 + 50(18) = 2000 + 900 = 2900
Since Just Decks quote is cheaper, Aaron should use Just Decks.