Pls help me guys thank you and godbless

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.

Someone me what is the area of this figure? 18m 18m 8m 16m

X– 4 = 12.5 can be written in words as