C represents the number of four-packs of cartridges because the question says there are 4 pack of 42 ounceink cartridges that sell for 85.99...If you were ever to create an equation with this it would be 42c = 85.99
And you can plug in 4, 8, or 16 for c and check how much they would cost over all...your welcome, have a great day
F (9)= 5(9) -16
45-16
f(9)=29
Answer:
The slope is -2
Step-by-step explanation:
Given



Required
The slope (m)
Slope is calculated as:

So, we have:



No offense but this is really easy all you do is substitution
(2+3)= 5