I need help, one in red I’ll make it best answer .

Simplify the expression. enter the correct answer.

You are constructing a histogram for scores that range from 70 to 100 in whole points. frequencies range from 3 to 10; that is, every whole-point score between 60 and 100 occurs at least 3 times, and at least one score occurs 10 times. which of these would probably be the best range and size for the score intervals along the x-axis?

Brent wants to know what is 5 x 1/2