You and your friend are selling tickets for the orchestra concert. on thursday, you sold 15 tickets and your friend sold 10 tickets. what percent of the tickets sold on thursday did you sell?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is