Answer:
<h2>(-2, 5)</h2>
Step-by-step explanation:

32/40 is the fraction to 32:40 and if u simplify it, it would be 4/5
Answer:
2933.46666667
Step-by-step explanation:
It let me answer now
A.) R(20) = -10(20)^2 + 800(20) = -10(400) + 16000 = -4000 + 16000 = $12,000
R(25) = -10(25)^2 + 800(25) = -10(625) + 20000 = -6250 + 20000 = $13,750
R(30) = -10(30)^2 + 800(30) = -10(900) + 24000 = -9000 + 24000 = $15,000
b.) For maximum revenue, dR/dp = 0
dR/dp = -20p + 800 = 0
20p = 800
p = 40
Therefore, the maximum revenue will be recorded when the price is set at $40.