Color in all but 1 column. (Going up and down) the colored in part is the answer.
16-4(3+2:2)
16-4(3+1)
16-4 x 4
16-16=0
Demand
D(q)=(12-q)^(1/2)
Revenue,
R(q)=q*D(q)=q*sqrt(12-q)
At maximum revenue,
R'(q)=0
where
R'(q)=sqrt(12-q)-q/[2(sqrt(12-q))]=0
Solve for q=8.
Hence, quantity=8, price=sqrt(12-q)=sqrt(12-8)=sqrt(4)=2
The answer is 96 pi, good luck
Sn = 44 + 5(24-1) = 159 is the answer