Given , revenue function : 
Cost function 
Profit = Revenue - Cost
Hence, P = R(x) - C(x)
Total revenue for x = 12000 is 
Total cost for x = 12000, 
Profit = 60000-28500 = 31500
Answer = 31500
The answer is 5.7 because you can only round down not up
Answer:
11.)
a.) p=l/rt
b.) p=40/4%(2)= 500
12. R=V/L
14. y=-0.25 +1
Step-by-step explanation:
...
The markdown is 0.40($55), or $22. That's what James will save if he purchases the backpack on sale at 40% off.