The answer is X^2-xy+2x^2y sorry if I am wrong
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➷ 3.5 + x = 7
We need to isolate x
Subtract 3.5 from both sides:
x = 3.5
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Answer:

Step-by-step explanation:
To solve this problem, we can use the area of a circle formula:

<em>A = area</em>
<em>r = radius</em>
Lets plug the values into the equation:
Calculate 
Multiply
and 9 together

The area of the truck wheel is 