What is the value of c in the equation below?

Please help I need help it’s a timed quiz

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

52 cm radius = diameter = area = circumference = circumfer