05.01-PR006 Quilts R Us (QRU) is considering an investment in a new patterning attachment with the cash flow profile shown in the table below. QRU's MARR is 13.5%/year. EOY Cash Flow EOY Cash Flow 0 8 1 9 10 2 -$1,400 $0 $500 $500 $500 $500 3 11 $600 $700 $800 $900 -$1,000 -$2,000 -$3,000 $1,400 4 12 5 13 6 $0 14 7 $500 15 a. What is the annual worth of this investment? b. What is the decision rule for judging the attractiveness of investments based on annual worth? c. Should QRU invest