A linear revenue function is R = 38.36x. (a) What is the slope m? mm (b) What is the marginal revenue MR? MR = What does the marginal revenue mean? O Each additional unit sold yields this many dollars in revenue. O If the number of units sold is increased by this amount, the revenue increases by $1. O If the number of units sold is increased by this amount, the revenue decreases by $1. O Each additional unit sold decreases the revenue by this many dollars. (c) What is the revenue received from selling one more item if 48 are currently being sold? $ What is the revenue received from selling one more item if 87 are being sold? $