Can someone check my answers? i'm not sure what they want for question4 and 5? question five has the answer i was going to choose

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?