22/30 to its lowest term

(hurry! ) which expression is equivalent to the following complex fraction?

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%

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.