1)You have created a novel reusable water bottle filtration system. When presenting it to the client, you have decided to do a present value/ present worth analysis, over 5 years with an interest rate of 20%. It includes a rebuild cost (representing the filter replacement) of $33 at year 4. Please assume all costs are positive and all benefits are negative.

What is the present value/present worth of the rebuild (filter replacement)?

2)You have created a novel reusable water bottle filtration system. When presenting it to the client, you have decided to do a present value/ present worth analysis, over 5 years with an interest rate of 20%. It includes a -$103 per year every year (years 1-5) benefit (savings) from not needing to purchase plastic water bottles. I.e. a savings of-$103 in year 1, -$103 in year 2, -$103 in year 3, -$103 in year4, and -$103 in year 5. Assume cost is positive and benefit is negative.

What is the present value/present worth of these yearly water savings?

3)You have created a novel reusable water bottle filtration system. When presenting it to the client, you have decided to do a present value/ present worth analysis, over 5 years with an interest rate of 20%. It includes an initial manufacturing cost of $191 at year 0 for one novel filtration bottle. Please assume all costs are positive and all benefits are negative.

What is the present value/present worth of the initial manufacturing cost?