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.
The answer is B
As the question states that you need to "subtract 4 from 12" that means that you are taking 4 away from 12, so it would be 12-4.
Then it says to divide by 8. This means that for the subtraction to happen first, it must be withing parenthesis, so that would make the expression become
(12-4)÷8
Answer:
24
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
Divide this by the size of 1 exterior angle to find number of sides, that is
number of sides =
= 24
Answer:

Step-by-step explanation:
Let A1 be the area of one square and A2 be the area of second square
So,
A1 = s^2
where s is side of square

So side of one square is 
To calculate the length of fence we need to find the perimeter of the square
So,
P1 = 4 * s

For second square:

The perimeter will be:

So the total fence will be: P1+P2

Answer:
-3 x -15
Step-by-step explanation:
The numbers -3 and -15 multiply together to give you 45 and when added:
-3 + (-15) = -18
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