Answer:
Net Present Value = $23,775
Explanation:
Year Cash flow PV factor at 10% Present value
0 ($80,000) 1.0000 ($80,000)
1 $35,000 0.9091 $31,818
2 $35,000 0.8264 $28,924
3 $30,000 0.7514 $22,542
4 $30,000 0.6830 $20,490
NPV $23,775
Net Present value = Sum of all present values from t=0 to t=n = $23,775