Hurry help me solve this equation.

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.

Which ratio is equivalent to 10: 85

What is the distance between (–2 1/2,-3) and (1, –3)?