1. (20 pts) Your company wants to purchase some equipment for recycling metals. Machine A costs $323,000 and has a useful life of 10 years. Its operating costs are $2.40 per ton of metal processed. Machine B costs $178,000 and has a useful life of 6 years. Its operating costs are $8.00 per ton of metal processed. How many tons of metal per year must your company process to favor Machine A over Machine B? Assume an MARR of 18% per year