Answer:

Step-by-step explanation:
→ Substitute in t = -3 into 

→ Simplify

→ Simplify
⇔ 
Answer:
6%
Step-by-step explanation:
120/2000= 60/1000= 6/100= 6%
Answer
m = 10
Step-by-step explanation:
Formula:
m = (y2 - y1) / (x2 - x1) => plug in points
(-3,-5) and (2,-5)
Answer:

In order to maximize the last equation we can derivate the function in term of x and we got:

And setting this derivate equal to 0 we got:

And solving for x we got:

And for this case the value that maximize the profit would be x =95 and the corresponding profit would be:

Step-by-step explanation:
For this case we have the following function for the profit:

And we can rewrite this expression like this:

In order to maximize the last equation we can derivate the function in term of x and we got:

And setting this derivate equal to 0 we got:

And solving for x we got:

And for this case the value that maximize the profit would be x =95 and the corresponding profit would be:
