Put a check by all the factors of 15 answers : 1, 2, 3, 4, 5, 10, 15. answer asap

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Find the maximum value of p= 4x + 5y subject to the following constraints :