If a train travels 180 miles in 3 hours how many miles per hour did they travel?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry