Can someone help pls

The frequency table shows the results of a survey asking people how many hours they spend online per week. on a piece of paper, draw a histogram to represent the data. then determine which answer choice matches the histogram you drew. in order here is the.. hours online: 0-3, 4-7, 8-11, 12-15, and 16-19. frequency: 5, 8, 10, 8, 7 answer for the question is in the picture! : )

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read