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.
Answer:
x = 3
Step-by-step explanation:
21+g or it could be(still the same thing) 21 + 1g
yes. which questions do you need me to answer?