Answer:
B
Step-by-step explanation:
Answer:

Step-by-step explanation:
The total cost would be "Y".
"x" is would be "per text message".
12 cents per text message would be .12x.
And then, on top of that, we have to pay $30 per month. ( + 30 )
Put together, the equation should be y = .12x + 30.
A ball is a Sphere sooooo......

And when you enter the radius.....
The answer will be about 523.6 inches