At the beginning of the day stock xyz opened at 3.15. at the end of the day it closed at 2.87. what is the rate of change of stock xyz. a) 4.1% b) -8.9% c) 9.8% d) -0.09%

The correct answer is B) -8.9%

The rate of change for any problem is always determined using the following equation.

In this case, the old value is 3.15 and the new value is 2.87. SO we use these in the equation to get the answer.

-.088889 * 100

-8.9%

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2

32

step-by-step explanation: