Which phrase best describes this polygon? concave nonagon

concave octagon

convex nonagon

convex octagon

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.