Does anyone want to join a zoom class

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.

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.