Can someone please find the answer to both parts it would really be helpful.

Question

A telephone company offers two different types of billing. The first choice is to pay $10.00 per month plus $0.09 per MB of data. The second choice is to pay $16.00 per month plus $0.07 per MB of data.  

Part A: Write a system of equations to model the situation the total cost for one month with each company.

Part B: How many MB of data would you have to use in one month in order for both plans to cost the same amount? Explain how you determined your answer. 

Answer 1

C = 10 + .09x

C = 16 + .07x

16+.07x = 10 + .09x

.02 x = 6

x= 6/.02 = 600/2 = 300 MB per month would make both plans cost the same