PLZ HELP ME.WILL GIVE BRAINLIEST. THANKYOU. there are two pictures.

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

This question awards 100 ! i really don’t want to fail i will also mark you !