Answer:
-17
Step-by-step explanation:
It is basically subtracting 4 from 21 except the answer is negative
Answer:
BC = 35 units
Step-by-step explanation:
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Answer:
4a^2
Step-by-step explanation:

Therefore, the largest common factor is 4a^2. Hope this helps!
Answer:
11 X 34 then divide that by two which is 187
Step-by-step explanation: