If f(x) and f–1(x) are inverse functions of each other and f(x)=2x+5, what is f–1(8)?
a: –1
b: 3/2
c: 41/8
d: 23

What is the value of f(x) = 2.2 for f(-2)?

What is the area of the shaded sector?

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours