Sandy had test scores of 20 25 17 22 and 21 (out of 25 total). what is her average (mean) score?

Ill mark the brainliest if you me with the these three questions 7,8,9

Nikolas calculated the volume of the prism. his work is shown below.

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.