Please Solve

4. {In} In constructing a LEED certied ofce building intended to meet certain environmental standards, you recommend to the oumer to Xeriseape the property with a reek garden that will reduce water consurnption by ldll} gallons per year. This additional landscaping will cost $111,011]. The water utility company currently charges 2 ceuts ($0.09] per gallon of water. a. How many years does it require for your water bill savings to equal the initial landscaping oost if you do not consider the time value of money {(1% interest)? I). How many years does it require for your water bill savings to equal the initial landscaping cost if your tirne value of money equals 6% per year {6% interest}?