It’s A
Explanation / when you multiply 7 by -9 you get -63
36/4=9 48/3=16 so 9*16=144/2=72 so it is 72 square inches
The answer is 2500 because just remove the 0's, what is half of 50? answer is 25 so yeah same thing but put the 0's back.
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The most common expressions involving 16 and w are:
16+w
16-w
16xw and
16/w
Hope this helps and answers your question