need help figuring out this question! thank you!

HT Bowling, Inc is considering the purchase of VOIP phone system. It will require an initial investment of $29,500 and $9,000 per year in annual operating costs over the equipment's estimated useful life of 4 years. The company will use a discount rate of 11%. What is the equivalent annual cost? $3,460 $18,509 $26,810 $12,623 HT Bowling, Inc is considering the purchase of VOIP phone system. It will require an initial investment of $29,500 and $9,000 per year in annual operating costs over the equipment's estimated useful life of 4 years. The company will use a discount rate of 11%. What is the equivalent annual cost? $3,460 $18,509 $26,810 $12,623