Answer:
i think it says to find area
Step-by-step explanation:
Answer:
x≤2,000
Step-by-step explanation:
You can't have any more than 2,000 tickets, so it would be x can't be anymore than 2,000, or x≤2,000
Note that if

, then

, and so we can collapse the system of ODEs into a linear ODE:


which is a pretty standard linear ODE with constant coefficients. We have characteristic equation

so that the characteristic solution is

Now let's suppose the particular solution is

. Then

and so

Thus the general solution for

is

and you can find the solution

by simply differentiating

.
The answer is C Kay. Got it?