Answer:
a. write a linear function for the number of gallons of gas in the tank in terms of the number of miles driven.
Answer:
9
Step-by-step explanation:
What you do is you plug in the a number into a, b into b, and c into c.
4(4)-(2+5)=9.
Hope this helps.
4 + 5t < 19
Subtract 4 from both sides
5t < 19 - 4 or 5t < 15
Divide both sides by 5
t < 3
Answer:

Step-by-step explanation:
Given

Required
Find the equation of the line
First, the slope of the line has to be calculated using the following formula;


So, the equation becomes



The equation of the line can then be calculated using



Multiply both sides by x


Add x to both sides


Reorder




Multiply both sides by x - 6



Add x - 6 to both sided



Hence, the equation of the line is 
The set of ordered pairs are 
Step-by-step explanation:
Given that the relation 
To find the set of ordered pairs, let us substitute the value for x in the relation 
For
,

The ordered pair is 
For
,

The ordered pair is 
For
,

The ordered pair is 
For
,

The ordered pair is 
For
,

The ordered pair is 
Thus, the set of ordered pairs is 