Show that the two shorter sides in triangle A have the same length

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?

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

What is the best reason for jacinta to have a savings account in addition to a checking account