When evaluating (6.28x10^12)/(3.14x10^4) what will be the exponent of 10 in the quotient?

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Yvaries inversely as x. y =12 when x=5. find y when x=4

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?