Answer:

Step-by-step explanation:
- Simplify




- Find the additive inverse of
by using its property - <em>"Sum of a number & its additive inverse is always zero". </em>Assume that 'x' is an additive inverse of
.


- Simplify




- Now, find the product of
& 


Answer:
the answer is a
Step-by-step explanation:
above sea level is positive and below sea level is negative
hope this helps
Answer:
Vertical and Supplementary
Step-by-step explanation:
Vertical:
each of the pairs of opposite angles made by two intersecting lines.
Supplementary:
Two Angles are Supplementary when they add up to 180 degrees. These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°: Notice that together they make a straight angle. But the angles don't have to be together.
Neither is greater.
1 quart = 4 cups
2 quarts = 8 cups
3 quarts = 12 cups
So they're equal.
Step-by-step explanation:
4x-0=12
4x=12divide both sides by 4
x=3