Please answer both a and b.

Arroyo, Inc. is considering a capital investment (equipment) costing $107,000 with a 6-year useful life and equal annual net cash flows. The equipment has a net present value, $4,120, calculated at 11%. Use the following table: Present Value of an Annuity of 1 Years 8% 9% 6 4.623 4.486 10% 4.355 11% 4.231 12% 4.111 14% 3.889 a) Calculate the equal annual net cash flows for this investment (round to nearest $1). b) Calculate the present value index of this investment at 11% (round to 0.00)