Answer:
B - 2 hours
Step-by-step explanation:
find the rate for each scenario until you find one that matches.
for A 1 hour:
Ben charges (15.50×1hour) = 15.50
Cathie charges (9.25 × 1 hour) + 12.50 flat fee = 21.75
THESE DO NOT MATCH
so you do B 2 hours:
Ben charges 15.50× 2hours = 31
Cathie charges (9.25 × 2hours) + 12.50 flat fee = 31
THESE MATCH SO THIS IS THE ANSWER
If you continue like this for 3 hours and 4 hours the values don't match. so the only answer is B.