your client began purchasing shares of the gro mutual fund two years ago. she has followed a dollar cost averaging approach by investing $2,000 every six months for the last two years. the following data depict her purchases. date net asset value of fund number of shares purchased october 1, 20x6 $44.44 45 april 1, 20x7 $38.46 52 october 1, 20x8 $33.90 59 april 1, 20x9 $48.78 41 what is your client's average cost per share of gro?