Suppose A equals 10. Lets use 20% of 10, or 2.
10/2 = 5.
As we can see, the equations varies depending on the percentage used. We can effectively conclude that:
A/(1/5A)
5A.
The equation is equal to the reciprocal percentage times A.
Another example:
50 divided by 10% of 50 (5).
50/5 = A
50 * 1/5 = A
10 = A
It would be 1,300. When rounding, you'd need to look at the number to the right of the place you're rounding to. In this case, you're rounding to the hundreds place (the 2), so you look at the number to the right (7). To know if you round up or down use this:
Round down= 0-4
Round up= 5-9
Answer:

Step-by-step explanation:
Here we need to move the negative sign to the rest of the variables, and then only add the ones with the same power:

And then move the variables with the same power closer together

See how -x^4 and -2x^4 are together?
All we have to do now is combine.

So our answer is 
Answer:
A. The two triangles.
Step-by-step explanation:
Isometry can be divided into two words: iso = same and metry = measure
So, isometry means "same measure".
In this case, that means the transformation didn't change the measures of the object.
In B, they kept the same shape, but not the same side.
In C, you can see the figure has been transformed,.