144 ounces! There are 8 ounces in 1 cup. 8x18= 144!! :D
The perimeter of a rectangle is (2 lengths) plus (2 widths).
If one side is missing, then it sounds like you still have enough information
to know what the length and the width are. Just take each number and use
the first line up there /\ to calculate the perimeter with them.
She buys 24 dvds in 12 weeks.

The respective terms used for the lines are ~
Answer:
Associative properties of multiplication