R = 6 1. What is constant of 4r - 0.9?

2. 6r , What is coefficient?
What is the variable?

3. r/2 , What is the coefficient?

4. r+r+r , What is the coefficient or r after the expression is simplified?

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?

Jordan rides his bike 6 7/15 miles every day to deliver newspapers and to go to and from school. if his ride to and from school is 4 3/10 miles, how many miles is the trip to deliver newspapers? 1 1/3 1 1/6 2 1/6 2 4/5

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3