54 = 3x + 37.5 <== ur equation....and x = number of years
54 - 37.5 = 3x
16.5 = 3x
16.5 / 3 = x
5.5 = x......so it would take 5.5 years...or 5 1/2 years <=
STEP-BY-STEP SOLUTION:
Let's solve this problem step-by-step.
As posters are generally rectangular in shape, we will establish the formula for the area of a rectangle which we will be using as displayed below:
Area = height × width
Now let's find the area of the postwr using the above formula.
Height = 2 feet
Width = 0.7 feet
Area = height × width
Area = 2 × 0.7
Area = 1.4 square feet
ANSWER:
Therefore, the answer is:
The area of the poster is 1.4 square feet.
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X = width
2x = length
2x + 4x = 48
6x = 48
x = 8
2x = 16
8*16 = 128
Your answer should be that the area is 128 square yards. Hope this helps!
Answer:

Step-by-step explanation:
So y=mx+b tells us the initial amount is b (also known as the y-intercept).
Anyways you have to pay a one time fee of 35 dollars and then it is 50 dollars per month.
Let x represent the number of months she goes to yoga.
If she goes 1 month it costs her 35+50.
If she goes 2 months it costs her 35+50+50 or just 35+50(2).
If she goes 3 months it costs her 35+50+50+50 or just 35+50(3).
If she goes x months it costs her 35+50x.
Now she only has 1325.
So we want the cost of her x months to be less than or equal to 1325 because she doesn't have more than that.
So we want 
Let the constant be k.
For an inverse squared proportion the formula is y = k/x^2
Insert values of y and x into the formula.
3 = k/(-4)^2
3(-4)^2 = k
k = 3(16)
k = 48
Hope this helps. :)