Find two numbers whose sum is 45 and whose difference is 19.

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions