A negative exponent just means that the base is on the wrong side of the fraction line, so you need to flip the base to the other side.
For example

or

***************************************

The answer is "D"
Answer:
4 oz of water must be evaporated
Step-by-step explanation:
If we let x represent the amount of water to be evaporated, the relation between the solutions is ...
0.08 · 36 oz = 0.09 · (36 -x) oz
0.09x = 36(0.09 -0.08) . . . . . divide by oz; add .09x, subtract .08·36
x = 36· 0.01/0.09 = 36/9 = 4
4 ounces of water must be evaporated.
You find a unit rate by multiplying by 100<span />
1/2 inch
Explanation
I had this question on my homework and got it right. Hope this helps!
Answer:
<h2>
<em>X=</em><em>9</em></h2>
<em>Solution</em><em>,</em>
<em>
</em>
<em>hope </em><em>this </em><em>helps.</em><em>.</em><em>.</em>
<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>