Answer:
B. 7 + (y · 5) and 7 + (5 · y)
Step-by-step explanation:
Multiplication has the commutative property which means the result is the same no matter what way round the numbers are, e.g. 4 × 3 is the same as 3 × 4. In both expressions 5 and y is in brackets and the results of both brackets are 5y. Both expressions are equal to 7 + 5y therefore they are equivalent.
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