Answer:
L: 10; W: 5
Explanation:
The perimeter is all sides of the rectangle added together. So, we need to find what all the sides could be. Keep in mind that the length and length have to be equal. As well as the width and the width. So, one possible combination is the width being 8 and 8. Which adds to 16. And the width being 7 and 7. Which adds to 14. Which adds to 30. But that isn't it. If we continue doing combinations, we can eventually find the right combination. I actually found it fairly easily. If we make the length 10 + 10, that will equal 20. And in order to get to 30, we would have to do 5 + 5 for the width, which is half of 10. So, we actually found it. So, the length is 10, and the width is 5.
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