The partial factorization of x2 - x - 12 is modeled with algebra tiles.
Which unit tiles are needed to complete the
factorization?
+X
+
+
+
O 3 negative unit tiles
O 3 positive unit tiles
4 negative unit tiles
O 4 positive unit tiles
+X
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+X+X+X
-X
-X
-X
-
1

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock