60% if there are only 10 white and black balls
<span>Rectangles have a couple of properties that help distinguish them from other parallelograms. By studying these properties, we will be able to differentiate between various types of parallelograms and classify them more specifically. Keep in mind that all of the figures in this section share properties of parallelograms. That is, they all have</span>
That Equals = -60i. Hope im right :) Good luck
Answer:

Step-by-step explanation:
The reciprocal of a number n is 
Given 8
, change to an improper fraction
=
=
, thus
reciprocal =
= 
7 because it is whole number