Is there anyone who is good at discrete math to study with me? If so, please message me. I have an assignment to do and help is needed.

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5