Arocking chair with an orginal price of $375 is on sale for $318.75.what is the percent of discount

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.

If you answer 2+2 you will get over 80 points

Could someone me with this question i’ve been stuck on it for 20 minutes