Don't understand everything is wrong on here that i did

Carl wants to buy a television that cost $500 including taxes. to pay for television he will use a payment plan that requires him to make a down payment of $125 and then pay $70.50 each month for six months what is the percent increase from the original cast of the television to the cost of the television using a payment plan.

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

For the inequality |c| < |d| to be true, which of the following must be true?