B. 3×-12+6×+9
10, 10, 7, 12, 11
Answer:
u just take the sum of all numbers divide by the number of numbers (5)
First, solve the parenthesis
-8 + 6 = -2
-3[5 - (-2)]
Note that two negatives = one positive
-3[5 - (-2)] = -3[5 + 2]
Simplify. Solve the bracket
-3[5 + 2] = -3[8]
Simplify. Multiply to get the answer
-3 x 8 = -24
-24 is your answer
hope this helps
Answer:
-21
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Step-by-step explanation: