Need help with both of these please!! ASAP

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a