3х + 11 а 7-5
Can you solve this problem for me

Asquare parking lot has 6,400 square meters what is the length in meters

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?

Yvaries directly as x. y =90 when x=6. find y when x=13