The ratio of boys to girls in Ms. Seeley’s class is 12/18. Which ratio of boys to girls is equivalent? 3:4
4:9
4:6
2:4

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).