Please solve a, c, d, e, and f i don’t understand this

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

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