Your landscaping company can lease a truck for $8,400 a year (paid at year-end) for 7 years. It can instead buy the truck for $44,000. The truck will be valueless after 7 years. The interest rate your company can earn on its funds is 8%. a. What is the present value of the cost of leasing? (Do not round intermediate calculations. Round your answer to 2 decimal places.) b. Is it cheaper to buy or lease? c. What is the present value of the cost of leasing if the lease payments are an annuity due, so the first payment comes immediately? (Do not round intermediate calculations. Round your answer to 2 decimal places.) d. Is it now cheaper to buy or lease?

Wo firms, a and b, each currently dump 50 tons of chemicals into the local river. the government has decided to reduce the pollution and from now on will require a pollution permit for each ton of pollution dumped into the river. it costs firm a $100 for each ton of pollution that it eliminates before it reaches the river, and it costs firm b $50 for each ton of pollution that it eliminates before it reaches the river. the government gives each firm 20 pollution permits. government officials are not sure whether to allow the firms to buy or sell the pollution permits to each other. what is the total cost of reducing pollution if firms are not allowed to buy and sell pollution permits from each other? what is the total cost of reducing pollution if the firms are allowed to buy and sell permits from each other? a. $3,000; $1,500 b. $4,500; $3,500 c. $4,500; $4,000 d. $4,500; $2,500