Kate is going to buy either 1, 2, 3, or 4 pens. The cost of buying n pens is given by the function F(n)=1.25n, where F(n)=cost in dollars.
Which best describes the range of f(n) in this situation?
{1,2,3,4}
(1.25,2.50,3.75,5.00}
1 1.25

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step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96

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