Could you please answer me this?

IV. (33 points) Explain your logic in no more than two sentences for each answer. You may also include a diagram where appropriate. Eight points for each answer. If you get correct answers for questions a through d, you will receive one extra point. a. Consumer incomes rise. Explain in a sentence or two what the effect on equilibrium price and quantity of an inferior good will be. b. The price of a competing products falls. Explain in a sentence or two what will be the effect on price and quantity for the original firm? c. If prices rise, explain in a sentence or two why sales revenue will increase, decrease, or remains the same for each of the following circumstances: (1) the demand curve in this range is elastic; (2) the demand curve in this price range is inelastic; and (3) the demand clurve in this range features unitary elasticity. d. If price is initially $6 and output is 2000 units, but price falls to $5 and output rises to 2200 units, calculate elasticity of demand in this range. Show your formula and calculations