Question attached. Help please!

3. Aggregation Practice - in each of the following situations, solve for either market supply or marked demand a. Derive market demand for a market with three consumers, having the respective individual demand functions of: q, (P) = 10 - P; q2(P) = 20 - 2P; and q3 (P) = 50 -5P. b. Derive market supply for a market with 15 producers, each of which has an individual supply function given by q (P) = 2 + = P c. Derive market supply for a market with two producers having the following for individual inverse supply functions: p, (q) = 4 + 2q and p2(q) = 4 + =