-12x+21
-3 x 4 = 12
-3 x -7 = 21
Answer:
x = -72
Step-by-step explanation:
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Answer: The answer would be 8.5 times 10^-5
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10 If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
I think the last one is right hope this helps
