a train travels 90 3/5 miles in 3/4 of an hour. what is the average speed in miles per hour, of the train?

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint. how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

What does x = in this equation x+3+2x=x+5

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?