A. The water level in a reservoir increased 52 meters. If this was a 23% increase,what was the initial depth?




B.The price of a jacket was reduced from $84 to $63. By what percentage was the price of the jacket reduced?



C. After a 25% discount, the price of a T-shirt was $12. What was the price before the discount?



I know the answers(don't now if there right) but i have to figure out how to do them please help.