Eight white balls and twenty black balls are in a bag. what is the probability of drawing a black ball in one draw? 1 2/5 5/7

Giving 100 points asap bev has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. calculate the area of the polygon. be sure to show all your work and explain your answer.

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g