How can you prove two equations are inverses by looking at the graphs?

When benny’s sister penny is 24, benny’s age will be 125% of her age. how old is lenny? a) how old will benny be then? b)if benny is 12 years old now, how old is penny now? explain your reasoning.

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Arrange these numbers from least to greatest 3/5 5/7 2/9