There are 9 oak trees in a park. The oak trees make up 45% of all the trees in the park. How many trees are in the park?

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

If two parallel lines are cut by a transversal, interior angles on the same side of the transversal are supplementary. a. always b. sometimes c. never