The revenue is given by the unit price * number of units.
Profit = Revenue - Cost = 200x - 500,000 - 80x - 0.003x^2 = 120x - 500,000 - 0.003x^2
For profit to be maximum dP/dx = 0
120 - 0.006x = 0
x = 120/0.006 = 20,000
Therefore, to maximize profit, the firm should produce 20,000 penicillin.
So first, this is point slope form. The first step is to distribute.)

Then add 4 to both sides.

Then add 2x and it becomes
The square root of 2 is 1.41
Answer:
8y + 7x-7x=x-7x
8y=-6x
So am not sure but hope I helped maybe u can get a solution or way to answer the question
Just simply use the calculation of a trapazium.
[ (6+7) + 21 ][6]
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2
that's the formula of a trapazium. add the top length and bottom length, multiply it by the height and divide all of them by 2.
now the answer should be A, 102.