1. The sum of two integers is 16 and their difference is 12. What are the numbers?!?

2. Juan is 8 years older than his brother Two. In another 5 years, Juan will be twice as old as Two. How old are they now?

3. A pile of 34 coins is worth $5.10. There are two nickels and the remainder are quarters and dimes. How many quarters and dimes are there?