Answer: $25
Step-by-step explanation:
Total revenue, at price = $50
Total revenue = price × units sold
= $50 × 0
= 0
Total revenue, at price = $45
Total revenue = price × units sold
= $45 × 1
= $45
Total revenue, at price = $40
Total revenue = price × units sold
= $40 × 2
= $80
Total revenue, at price = $35
Total revenue = price × units sold
= $35 × 3
= $105
Marginal revenue of third unit =
![(Change\ in\ total\ revenue)/(change\ in\ units\ sold)](https://img.qammunity.org/2020/formulas/business/college/1vhq13l7fnxy1du9akdx9ic2btv3awbdus.png)
=
![(105 - 80)/(3 - 2)](https://img.qammunity.org/2020/formulas/business/college/amqm1hlnr2aw7u2burgbdbx6mngaatwyk4.png)
= $25