Step-by-step explanation:

This can be rewritten as

If we will solve this way,

But since the denominator is just in terms of 1, we can just simply get the (-3). Note that we have to take the negative into consideration.
From the original position of the decimal point, move the decimal point 3 times TO THE LEFT. Therefore, from 2.71 we move the decimal point 3 times to the left, 0.00271.
If the exponent has a positive value, move TO THE RIGHT.
For example,

Note that the exponent has a positive value. Therefore, we have to move the decimal point 3 times TO THE RIGHT. Producing 2710 as the answer.
Answer:
$56
Step-by-step explanation:
|y-9|=6
y-9=6
y-9=-6
y=15
y=3
So, y=15,3
Subtract them left to right