If stephen borrows $8400 for 3 years at a simple interest rate of 7% per year, how much interest will he have to pay for this loan for the 3 years ?

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?