Plz help fast hurry plz like hurry

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

Find cot x if sin x cot x csc x = √2