PLEASE HELP ASAP!!!
Sharon wants to switch from cable to satellite TV. She calls Great Vista Satellite to get a quote. After looking at her cable bill, the salesperson explains that they can provide the same 300 channels Sharon has for $0.20 less per channel. If she switches, her monthly satellite bill will come to $180.

Which equation can Sharon use to find c, the average amount the cable company charges per channel?

0.20(c - 300)
0.20c - 300
300(c - 0.20)
300c - 0.20

How much on average does the cable company charge per channel?