Arianna is standing on a dock beside a lake. She drops a rock from her hand into the lake. After the rock hits the surface of the lake, the rock's distance from the lake's surface changes at a rate of −6 inches per second. If Arianna holds her hand 7 feet above the lake's surface, how far from Arianna's hand is the rock 8 seconds after it hits the surface?

The rock is
inches away from Arianna's hand.

idk

step-by-step explanation:

use that smart brain

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

step-by-step explanation:

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