ASAP

A workshop purchased a new wielding machine for $250,000 and it will be used for the next 8 years. The new wielding machine is expected to make annual savings of $75,000. The wielding machine will operate for 2,000 hours during the first year and the operation hours for the subsequent year will increase by 300 hours over the previous year due to increase of the demand. The wielding machine has salvage value of $50,000 at the end of the 8th year. Determine the equivalent dollar savings per operating hour at 10% interest compounded annually. O $11.2 per hour O $13.98 per hour O $9.28 per hour O $12.03 per hour