Answer:
5.52 is the length of wire
Let x be the number of running plays
Y be the number of
passing plays
Since the total plays is 110
X + y = 110
And total yard is 378
3x + 7y = 378
Using the first equation
X = 110 – y and substitute to the 2nd equation
3(110 – y) + 7y = 378
And solve for y
Y = 12
Substitute to eqution 1
X = 110 – 12 = 98
To subtract fractions, we need a common denominator.

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the common denominator will be (y-2)(y+3)



The answer above will be the simplified form.
Domain = (-∞ , ∞) or all real numbers
hope it helps