R=-1/800(x^2-2400x)
use R'=0
R'=1/400x-300, 1/400x=300 => x=1200 critical point
take R(1200), we know its max bcuz of the orientation of R
Sorry I do not know I wish I could help you
You would have $165,000, hope this helps
Answer:
B
Step-by-step explanation:
because when you replace x and y
you find 4=4
