Rick says to find 2 x 5 he can use counting by 5s: 5, 10, 15, 20, 25. explain what he did wrong.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?