Charles has decided to open a lawn-mowing company. to do so, he purchases mowing equipment for $4 comma 0004,000, buys gasoline ($2.102.10 in gas is required to mow each yard), and pays a helper $15.0015.00 per yard. prior to opening the lawn company, charles earned $8 comma 0008,000 as a lifeguard at the neighborhood swimming pool. assume the money he used to purchase the mowing equipment could otherwise have earned 11 percent per year in the bank and that the mowing equipment depreciates at 2020 percent per year. charles plans to mow 350350 yards per year.