Please explain rationale for calculations when possible. Plots are scatter plots. Thank you!

Growth and yield models inform about the total wood that can be harvested at a given stand age. The data provided to you report growth and yield of an acre of loblolly pine grown in southern Georgia. Q1: Please consider the following conversion factors and parameters for developing your economic model. A cubic feet of greenwood weights about 65 pounds of greenwood Price of sawtimber = $30/ton Price of chip-n-saw = $20/ton Price of pulpwood = $10/ton | Real Interest Rate = 5% (compounded annually) At what stand age a landowner should harvest to maximize the Net Present Value? Plot the relationship between stand age (x-axis) and Net Present Value (y-axis). (30) Q2) Please consider the following conversion factors and parameters for developing your economic model. A cubic feet of greenwood weights about 65 pounds of greenwood Price of sawtimber = $30/ton | Price of chip-n-saw = $20/ton Price of pulpwood = $10/ton | Fertilizer at 3rd year = $200/acre Fertilizer at 12th Year = $300/acre | Tax = $5/acre/year | Planting Cost at Year 0 = $150/acre Real Interest Rate = 5% (compounded annually). At what stand age a landowner should harvest to maximize the Net Present Value? Plot the relationship between stand age (x-axis) and Net Present Value (y-axis). (50) Growth and yield models inform about the total wood that can be harvested at a given stand age. The data provided to you report growth and yield of an acre of loblolly pine grown in southern Georgia. Q1: Please consider the following conversion factors and parameters for developing your economic model. A cubic feet of greenwood weights about 65 pounds of greenwood Price of sawtimber = $30/ton Price of chip-n-saw = $20/ton Price of pulpwood = $10/ton | Real Interest Rate = 5% (compounded annually) At what stand age a landowner should harvest to maximize the Net Present Value? Plot the relationship between stand age (x-axis) and Net Present Value (y-axis). (30) Q2) Please consider the following conversion factors and parameters for developing your economic model. A cubic feet of greenwood weights about 65 pounds of greenwood Price of sawtimber = $30/ton | Price of chip-n-saw = $20/ton Price of pulpwood = $10/ton | Fertilizer at 3rd year = $200/acre Fertilizer at 12th Year = $300/acre | Tax = $5/acre/year | Planting Cost at Year 0 = $150/acre Real Interest Rate = 5% (compounded annually). At what stand age a landowner should harvest to maximize the Net Present Value? Plot the relationship between stand age (x-axis) and Net Present Value (y-axis). (50)