pls show all work and explain

A compeny wih $780,000 in operating assets is considering the purchase of a mochine that costs 584,000 and which is expected to reduce operating costs by 516,000 each year. Theso reductions in cost occur evenly throughout the year. The poybock period for this machine in years is closest to (0gnore income tares) (Round your answer to 1 decimal place. Musple choice 33 year 9.) petr 0 yeas 43 setar