Answer:

Step-by-step explanation:
Given: 
To solve: the given linear equations
Solution:
Consider the equations:

By method of cross multiplication:

For equations: 

Take 
So,

Answer:
25h+12
Step-by-step explanation:
Add the numbers :
21h-10h + <em>16</em><em>-</em><em>9</em><em> </em><em>+</em><em> </em>14h<em>+</em><em> </em><em>5</em>
21h-10h + <em>12</em><em> </em>+ 14h
Combine like terms:
25h + 12
Answer:
7
Step-by-step explanation:
If you graph the points and count the points from one coordinate to the other, you get 7.
Answer:
Well it definitely can't be a function
Step-by-step explanation:
To find out if a graph is a function, you can use the vertical line test. The vertical line test is when you draw a line down the center and if it hits one point, it's a function. But, when it hits more than one point, it's not. In this case, a line would hit more than one point; meaning that they are not functions.