Answer:
Let X represent Nick's age and Y represent Sara's age.
Then, it is given that: Nick is four years older than Sara.
We write the statement as:
or 
The only ordered pairs (X,Y) which satisfy the equation are: (0,-4) and (4,0) as you can see in the graph also.
In the graph X axis represents the age of Nick's age and Y-axis represent the age of Sara's age and the line Y=X-4 represents the relationship between the age of both.
Answer:
5 inches x 2.54 = 12.7 cm
Step-by-step explanation:
1 inche = 2.54cm
therefore, 5 inches x 2.54cm = 12.7cm
Answer:
$31.50
Step-by-step explanation:
3j = $94.50
j = 94.50 / 3
j = $31.50
Answer:

Step-by-step explanation:
The standard form of this equation is

m stands for the gradient or the slope, and c represents the y-intercept
