Does anyone have answers to this question?

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?

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Solve the system of equations. y= 2x y= x^2 - 15