1.5x+y=2.5 15x-1.5y=4.8 (solve the system of linear equations)

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?

What are the soultion(s) to the quadratic equation 40- x^2=0

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !