Suppose revenue is given by R(q) = 120q-0.5q^2 and total cost is given by C(q)=25+2.5q^2

1.. What quantity maximizes profit, pi(q)=R(q)-C(q)?

2..What is the maximized profit? (Do not include dollar signs.)

3..What is the value of pi''(q), i.e. the second derivative of profit, at the maximum? It should be negative since you have identified a maximum.