Simplify.

9y+11z+7y-4z

What is the answer?

A. 23yz

B. 2y + 7z

C. 16y + 7z

D. 16y + 15z

What is 7909+1044 using algorithm

Write (5y) exponent 2 without exponents

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Would is the answer to - 27/9=R/3