Answer:
Use an ruler if you must listen to explanation.
Explanation:
So this is actually very easy so it already tells you the Width= Feet is 80. But the Length = Feet is 6 greater any time you see something that says Number? Greater it means Multiply so multiply 6x80=480 so your length will be 480 Ok that's true But! The Width isn't answered your paper/screen Says, The perimeter of a rectangular outdoor patio is 80 ft. The length is 6 feet greater than the width what are the dimersions of the patio. Dimersion's what is it? The number.
So your confused?
Here are a list of things you can use,
A ruler
A protractor
Or A Tape Measuerer
Pardon if spelled wrong.
Anyway the perimeter is 80 ft. Here's what i would do i would use a ruler and see how long the width is then times that with 6 and you should get your answer i cannot use my ruler because picture is to small even when clicked this should help you.
Hope this helped!