A company sell x units of a product whose profit is given by the function P(X)=20X-X^2
A) how many units should the business sell in order to maximize profits = 10
B)How much is the maximum profit = 300
C) What is the maximum number of units the business can sell to make a profit
p(x)=-x^2+20x
-B
x= 2A
X= -20 = 10 P(10) = -10^2+ 20(10) = P(10)= 100 + 200 = 300
2(-1)
Can anyone help me get the answer to C and check my answers please