Enrollment in a photography class increased from 25 to 35 students. what was the percent of increase in enrollment?

This is geometry. could anyone ? i can't fail this class. my grade is quite low already.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Which expression shows the sum of the polynomials with like terms grouped together