Original amount 90$ new amount 84.50 what's the percent of change?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?