Question

S an initial service charge of $100 plus $50 per hour of use, and $20 per hour for the driver. Darren rented a limousine for his wedding. The expression \large 100+h\left(50\right)+h\left(20\right) represents his cost for h hours.

Part A: Find a simpler way to calculate the cost. Explain.
Part B: Find the cost for 7 hours of rental time.

Answer 1

A: $100 + $70h = Cost

B: $590

Explanation:

A: you can combine the use rate and the driver rate together since they both have the save variable.

B: $100 + $70 (7) = Cost

$100 + $490 = Cost

$590 = Cost