In half an hour josh ran 3/4 a mile. how many miles would Josh run in 1 hour?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

What are the solutions to the equation 4x2+3x=24-x

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.