Of a class are girls. a) What is the ratio girls to boys in the class?
b) What is the ratio boys to girls in the class?

2predicting population growth worksheet answer key 3. how do fertility rates compare to overall population rates of the world

What is the size of the matrix resulting from

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.