Arithmetic sequence: 1) A gym charges each member $100 for a membership fee and $30 per month after that
How much money will a member spend after 6 months?

2) Carrie borrows $960 interest free to pay for a car repair she will pay $120 monthly until the loan is paid off. How many months will it take to pay the loan off

3) The first row in an auditorium has six seats. Each successive row has three more seats than the row before it. How many seats are in row 15 ?

4) Each Ticket cost $40 if ten rows are sold out what is the total revenue

5) A new bag of dog food weighs 18 pounds. At the end of the day 0.5 pound of food is removed to feed the dogs. How much food is left after day 30?