please note:

$0 marginal costs

q1=90-2p1+1p2

q2=90-2p2+1p1

also find total quantity supplied

Suppose that identical duopoly firms have constant marginal costs of $10 per unit. Firm 1 faces a demand function of q1 = 40-2p1 + 1p2. where q, is Firm 1's output, p, is Firm 1's price, and p2 is Firm 2's price. Similarly, the demand Firm 2 faces is 92 = 40-2p2 + 1p1. Solve for the Bertrand equilibrium. In equilibrium, p, equals $ and p2 equals $ (Enter numeric responses rounded to two decimal places.) At these prices, q, equals and q2 equals (Enter numeric responses rounded to two decimal places.)