The graph to the right shows the closing share prices (in dollars) for Company A and Company B on the 21 trading days of the month of January, 2018. What was the approximate closing share price for Company A on day 21? Company B? The closing share price for Company A on day 21 was $ (Round to the nearest ten cents as needed.) The closing share price for Company B on day 21 was $ (Round to the nearest ten cents as needed.) A Price 25- 24- 23- 22- 24 23 Company B 22 22 25 21- W 21 20- 19- M 20 19 18- 18 17- 17 16- 16 15- Company A 15 14- 14 Day 13- 0 2 4 6 8 10 12 14 16 18 20 22