Oil from specific marine microalgae can be converted into biodiesel, serving as an alternate transportable fuel for automobiles and trucks. If linedponds are used to grow the algae, the construction cost is $14 million, andthe M&O cost is estimated at $2.1 million per year. Alternatively, if long plastic tubes areused for growing the algae, the initial cost will be higher at $19 million. Still, lesscontamination will render the M&O cost lower at $0.3 million per year. At aninterest rate of 9% per year and a 5-year project period, which system is betterponds or tubes? Use a present worth analysis.

The present worth oflined ponds is $ million, and that of plastic tubes is $__ million.

Plastic tubes / Lined ponds areused to grow algae.