Answer:
-2/5
Step-by-step explanation:
Expand parentheses:
Hope this helps!
2(4a+1)=3a
8a+2=3a
<em>Subtract 8a from both sides</em>
2= -5a
-5a=2
<em>Divide both sides by 5</em>
-a=
<em>Multiply both sides by -1</em>
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45
sample mean
B should be your answer. 125-360= -235