The simplified area function in terms of y for a rectangle is 
<u>Solution:</u>
Given that length of each side of a square = y
Need to determine area of rectangle whose length is twice the length of the square and width is 2 units longer that the side length of square
Length of rectangle = twice of side length of square = 
Width of rectangle = 2 + side length of square = 2 + y = y + 2

On substituting length and width in formula for area, we get

Hence function
is represents area of required rectangle.
I am thinking A) Or B) because iPlease chose as best if i am wrong please don't be mad most of my stuff is correct
the answer is 44 just do 86- 42 and it gives you the answer
Answer:
<h2>h = 15</h2>
Step-by-step explanation:
The formula of an area of a parallelogram:

b - side
h - height
We have b₁ = 18 and h₁ 10 and b₂ = 12.

Substitute:

<em>divide both sides by 12</em>

Let the people initially on the train be 'x'.
19 people got off the train --> x - 19
17 people got on the train --> x - 19 + 17
Remaining people on the train = 63
Therefore, x - 19 + 17 = 63
x - 2 = 63
x = 63 + 2
x = 65
Verification:
65 - 19 + 17 = 63
65 - 2 = 63
63 = 63
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Hope I helped!