A train leaves Little Rock, Arkansas, and travels north at 80 kilometers per hour. Another train leaves at the same time and travels south at 65 kilometers per hour. How long will it take before they are 580 kilometers apart?
It will take hours.

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

Y+ 2/y is it a polynomial in one variable or not? and if so, why?