Answer:
A. 124 = 55 + 5.75d.
d = 12.
B. $175.75.
C. Not cheaper.
Explanation:
A.
C = 55 + 5.75d
The cost C was $124 so:
124 = 55 + 5.75d ( is the required equation).
Solving this for d:
5.75d = 124 - 55 = 69
d = 69 / 5.75
d = 12 days.
B.
His total bill was 55 + 5.75 * 21
= $175.75.
C.
Cost for Megan if she had rented with the other company
= 35 + 7.75*12
= $128.
So this is not cheaper for Megan.