HELPPP PLEASSEEE WILL GOVE GOOD RATING AND

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.

Can someone me do math because i am having a breakdown rn because i don’t get it

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction