Suppose that E and F are two events and that P(E and F) = 0.38 and P(E) - 0.8. What is P(F given E)?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq