First, simplify -5 + 2.7 to -2.3 / Your problem should look like: Second, simplify to get rid of the addition. / Your problem should look like: Third, subtract. / Your problem should look like:
At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%