Mitchell has decided to use a credit card to buy a new gaming system. the price of the item with tax is $318. if he makes the minimum payment of $15 each month, it will take him 26 months to pay off the debt at an 18% interest rate. the total interest will be $67.64. how much will the item cost if mitchell uses a credit card and only makes the minimum payment each month?

The item will cost $385.64.

Step-by-step explanation:

The price of the item with tax is = $318.

If he makes the minimum payment of $15 each month, it will take him 26 months, this will cost him 15*26=$390

Also given is, the total interest will be = $67.64

The item will cost if Mitchell uses a credit card and only makes the minimum payment each month = 318+67.64 = $385.64

x° + 4x° = 180°

5x° = 180°

x° = 180°/5

x° = 36°