Q1. Calculate the average rate of change of the given function over the given interval.

Interval: [0, 5]

x	0	1	2	3	4	5
f(x)	6	13	14	15	15	28

Q2. Calculate the average rate of change of the given function over the given interval. Specify the units of measurement. Round your answer to three decimal places.

Interval: [4, 12]

t(months)	2	4	6	8	10	12
R(t) ($)	20,300	24,300	19,900	20,800	22,500	20,000

Q3. Calculate the average rate of change of the given function over the given interval. Specify the units of measurement. (Assume a = 14, b = 20, and c = 26. Round your answer to the nearest cent.)

Interval: [0, 2]