The landscaping company, Sustainability Designs, has offered you two methods by which to pay for the installation of a medium sized bio-infiltration complex at your property. Method 1 involves a payment of $7,200 as soon as the job is done (now). Method 2 allows you to defer payment for 10 years at which time a payment of $12,500 would be required. Assume the annual interest rate is 6%. You as the owner of the property want to choose the least cost option a. Compute the present worth of each method.