Combine and simplify the second set of terms 3a-7a^2-3a
1 answer:
-7a^2 because 3a-3a=0, the second set of terms can be simplified as -7a^2
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24.5 you take 3.5 and times it by 7 do get the distance.
I think the answer is BC= (bc + de)/2
Just do the whole process backwards
700*0.01=7
7-2.84=4.16
4.16/0.8=5.2
5.2+1.05=6.25
it would be C i think hope this helps
