Express the equation in logarithmic form 3^4= 81

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?

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

Select the lengths in centimeters that would form a right triangle