Day 1 and Day 3 his score add up to zero.
Day 2 and Day 4 his score add up to zero.
The answer would be 3mph because 3/4 / 1/4 = 3. So the answer would be 3mph.
Answer: The correct option is A.
Step-by-step explanation: We are given a polynomial which is a sum of other 2 polynomials.
We are given the resultant polynomial which is : 
One of the polynomial which are added up is : 
Let the other polynomial be 'x'
According to the question:


Solving the like terms in above equation we get:


Hence, the correct option is A.
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The answer to the question