755,082 what is this number rounded to the nearest ten thousand ?

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.

Can someone me with the property questions for 12 13 and 14 plz

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).