Find the equation of the line in the graph and mathematically model the scenario using function notation where cost is a function of number of minutes. cell phone plan graph : line starting at (0, 20) and going through 400, 40

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.