Agym charges a $30 sign-up fee plus $20 per month.  you have a $130 gift card for the gym. when does the total spent on your gym membership exceed the amount of your gift card?

It would be five months because the first month would be 50 dollars plus 20 for the 2nd month which would be 70 plus 20 for the third month which would be 90 plus 20 for the fourth which would be 110 plus 20 for the fifth month which would equal 130

It is about 5 months and ten dollars left on the gift card

Ithink it would be a and b