Determine if \sqrt(49) is rational or irrational and give a reason for your answer

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%

Find the value of x for which line a is parallel to line b

What is r i 4.5+10r=-6.5 with work pls