Arestaurant's small salt shaker contains 0.6 ounces of salt. it's large shaker holds twice as much. the shakers are filled from a container that has 18.6 ounces of salt. if 8 large shakers are filled, how many small shakers can be filled with the remaining salt?

A large container can hold 1.2 ounces of salt, since it says double the amount of the small, which is 0.6 ounces.
8 large salt shakers can hold (1.2 • 8) ounces of salt.
1.2 • 8 = 9.6
If only 9.6 out of the 18.6 ounces are used, there is (18.6 - 9.6) ounces left.
18.6 - 9.6 = 9
Now just divide 9 by 0.6 to find how many small containers can be filled.
9 / 0.6 = 15
The answer is 15 small shakers can be filled with the remaining salt.