The electrical current, in amperes, in a circuit varies directly as the voltage. When 9 volts are applied, the current is 3 amperes. What is the current when 39 volts are applied? Step by step please if you can

Can someone pls ! pls answer all. no explanation needed..

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?

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out