Answer:
Postitive numbers
Step-by-step explanation:
Hi!
<em>Plug in </em> for
<em>Multiply </em> <em>and </em>
<em>Add </em> <em>and </em>
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Betty's percentage is 15%.
The rate of change is the amount it changes for every missing assignment, therefore it would be -5.
Okay what’s the rest of the question ?
Let w be the width of the deck. Then, using the total area, we get:
(9+2w)(18+2w)=400
4w²+54w-238=0
2w²+27w-119=0
(2w-7)(w+17)=0
w=-17 or 7/2
Using the positive value, we get a width of 3&1/2 ft. for the deck
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