...equation c=20t+30 describes the? Media Services charge $30 for a phone and $20/month for its economy plan. The equation c=20t+30 describes the total cost, c, of operating a Media Services phone for t months. The total cost for 2 months of serv ice is $___.
If a customer has only $80 available, how many months of service can she receive? 2 1/2, 2 1/3, 2, or 3
If a customer has only $80 available, how many months of service can she receive? 2 1/2, 2 1/3, 2, or 3