Suppose there are 100 cookies in a jar. if 30 are chocolate chip, 40 are oatmeal raisin, 20 are peanut butter, and 10 are sugar cookies, what are the odds of randomly selecting either an oatmeal raisin or sugar cookie from the jar?

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)

Add: (6x^2-5x+3) + (3x^3+7x-8) a. 9x^2+12x-5 b. 9x^2+2x+11 c. 9x^2+2x-5 d. 9x^2-2x+5