a) Consider that 2 agents make up the demand side of a market. Person A's marginal benefits are = 60 0.25, and person B's marginal benefits are = 60 . Find and graph the equation for market-level marginal benefits.

(b) Consider that 2 agents make up the supply side of a market. Producer 1's marginal cost is 1 = 5 + 0.51, and producer 2's marginal cost is 2 = 5 + 2. Find and graph the equation for market-level marginal cost.

(c) Consider that 3 agents make up the supply side of a market. Producer 1's marginal cost is 1 = 3 + 0.31, and producer 2's marginal cost is 2 = 4 + 0.62, and producer 3's marginal cost is 2 = 1 + 0.13. Find and graph the equation for market-level marginal cost.