Answer:
The rule for the linear function will be:

Step-by-step explanation:
We know that linear function can be represented using the slope-intercept formula
y = mx+b
where m is the slope and b is the y-intercept
Given the function is linear
Taking two points from the table to determine the slope




Using the point-slope form of the line equation

where m is the slope of the line and (x₁, y₁) is the point
substituting the values m = -2 and the point (1, 3)



adding 3 to both sides


or

Therefore, the rule for the linear function will be:

Answer:
-125
Step-by-step explanation:
add 50 and 75 =125 make in negative
Answer:
12
Step-by-step explanation:
Factors of 30: 1,2,3,5,(6),10,15,30
Factors of 42: 1,2,3,(6),7,14,21,42
30 divided by 6, 42 divided by 6
(5) + (7)= 12
Answer:
$4.12
Step-by-step explanation:
$26.78 / 6.5 gallons = $4.12 per gallon