The set is not closed
Example
-4 * -2 = 8
8 is not a negative integer
Answer:
i think it's A if I'm wrong then wow
Answer:
18
Step-by-step explanation:
9+9=18 both sides of the rectangle is 9 so the top is longer which means 18
Answer:
Equation: 
Step-by-step explanation:
<em>The question is incomplete as the dimension of the phone was not given.</em>
<em>However, the following explanation will guide you</em>
Given

Required
Determine the Height
Volume is calculated as thus;

Substitute 75 for Volume

Divide through by Area

<em>The above represent the equation to solve for Height</em>
<em>To solve for height, we need the dimension of the phone or the area.</em>
Take for instance; the length and width of the phone is 5 by 5 inches;
The height would be:



Answer:
k=1/3; k=-2/5
Step-by-step explanation:
