Christine worked 28 hours last month and earned $9 an hour. She spent $18 of her earnings since then. How much money does she have left

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 angle 2=3x +1 and angle 3=2x +4what is angle 2

How to do this , and can some one explain