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:



Answer:

Step-by-step explanation:
For this case we have the following value:

We can convert this first to
like this:

Now we use the fact the the pressure is defined as
, whre P is the pressure, F the force and A the area, so then
and then we can replace this:

Now from definition of work we know that
where W is the work, F the force and d the distance, so then is equivalent 
And if we replace this into the equation we got:

This might help some this is mine from a little bit age =^-^=