Engineering Economics, Excel 3, and destroy bridge project

This morning he discuss about cash flow diagrams and compound interest.

Solving problems

Formula of P=principle, I=interest rate, N=Years or month, F=future value, and A=annual

 Using the Excel difference of simple and compound interest.

 Minimum monthly payment of $50 per month.

Minimum monthly payment of $100 per month.

 Testing the bridge my is 57.8 g, and it contains 70 pieces in them.

  Recording of the compressor of my bridge.

 After compressing my bridge, it did not destroyed

 Here is the result: me and Erick did not make the cut because we have been disqualified.

 My bridge was alright, but one of my support was damage but just a minimum.