Answer:
$339.00 for a week
Step-by-step explanation:
Step 1: Convert words into an expression
The Wertz car rental company charges $45 to rent a Mustang convertible, plus $42 per day.
f(d) = 45 + 42d
Step 2: Find the cost for a week/7 days
f(7) = 45 + 42(7)
f(7) = 45 + 294
f(7) = 339
Answer: $339.00 for a week