I need help with this math problem don't know how to do it.

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?

15 points ! ~ see if you know the answer to both you!

41/17 as a decimal rounded to the nearest hundredth