Note: enter your answer and show all the steps that you use to solve this problem in the space provided. marissa is researching information about martial arts students. she found that 7 out of 12 martial artists practice every day. there are 144 martial arts students at a school. a. predict how many students practice every day. b. what is the sample size?

 84

Step-by-step explanation:

Set up a proportion as follows:

Cross multiply: 12x = 7 × 144

Divide by 12:         x = 7 × 12

Simplify:                x = 84

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

898.1666667

step-by-step explanation:

5389/6 = 898.1666667