Q3) a) The Camino Real Landfill was required to install a plastic liner to prevent leachate from migrating into the groundwater. The fill area was 40,000 m2 and the installed liner cost was $8 per m2. In order to recover the investment, the owner charges to unload at the rates of $20 per pickup. $25 per dump truck, and $70 per compactor truck load. The fill area is adequate for 4 years. If the annual traffic is estimated to be 2500 pickup loads, 650 dump-truck loads, and 1200 compactor-truck loads, what rate of return will the landfill owner make on the investment? The rate of return that will be made by the landfill owner is % per year. b) Janice V. bought a 6% $1000 20-year bond for $950. She received a semiannual dividend for 8 years, then sold it immediately after the sixteenth dividend for $850. What rate of return did she make per semiannual period, and per year (nominal? The rate of return that she made per semiannual period is %. The rate of return that she made per year is