Answer:
(a)
--- The function
(b)
--- The salary in 5 years
Step-by-step explanation:
Given

Solving (a): Model the function around (1,24100) and (3,36600)
First, we calculate the slope




The function is then calculated as:




Solving (b): Salary in 5 years
Here:

So:



the answer to your question is linear I think
The answer is multiplication.
15 x 4 = 60
60 divided by 4 = 15
There are 4 times as many ribbons in the large ones as in the small one.