Michael spent 7

3

4

hours this week working on his science fair project. Last week, he worked on the project for

9

1

2

hours. Which is one way Michael can find how many hours he worked on his project in the two weeks?

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.