OK. I did it, and I have the solution.
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The length of the deck is (5 + 2x) .
The width of the deck is (4 + 2x) .
If the deck didn't have that big hole in the middle where the pool is,
then its area would be
(5 + 2x) · (4 + 2x) .
When you multiply that all out, you get Area = 4x² + 18x + 20
and the question tells us that the area of the whole big rectangle is 90 yds² .
So we can write
4x² + 18x + 20 = 90 .
Subtract 90 from each side: 4x² + 18x - 70 = 0
Divide each side by 2 : 2x² + 9x - 35 = 0
You can use the quadratic equation to solve that and find out that
x = 2.5 yards, and that's what the question is asking you.
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That makes the deck 10 yds high and 9 yds wide.
Total area of the whole big rectangle, (deck + pool ), = 90 yds².
The constant of proportionality is the relationship between variables that are directly proportional
The constant of proportionality of 
is 45.2
The distance measured in miles is given as:
An equation that has a constant proportion is represented as:
Rewrite the equation in terms of d and t.
So, we have:
Where, k represents the proportionality constant.
By comparison:
Hence, the constant of proportionality is 45.2
Read more about constant of proportionality at:
brainly.com/question/1835116
First, let’s figure out the total amount of money
$15 + $4 + $3 = $22
Okay, so now we know the total amount of money spent, so we can divide
22 ÷ 4 = 5.5
5.5 = $5.50
Here are the expressions:
(15 + 4 + 3) ÷ 22 = 5.5
22 ÷ 4 = 5.5 (or 5.50)
Therefore, each friend owes $5.50
Hope this helps you
-AaronWiseIsBae
Brainliest would be appreciated
here is a link to the aneser hope it helps
