Help plz
I need help with this badly

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?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?