


What was the percent change for Dario?
What is the percent change for Monica?


How much does Mary's backpack cost after the discount?
How much was Roberto's backpack after the discount?
Which backpack was the better buy?

How much was interest for Investment A?
How much is in the account after 30 years?
How much interest did collect for Investment B?
How much was in Investment B's account after 15 years?
Which will have a greater account balance in the given time periods?