Assume that y varies inversely with x if y = 4 when x = 4 find y when x = 2

Answer this question only if you know the 30 points and

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?