Leah has three fewer than 4 times as many dvds as sonia has. leah has 37 dvds how many dvds does sonia have

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

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

What is the base of 1/9 to the power of 2