Which of the following in an irrational number? please help ASAP!!

18
2.6 ( repeating )
pi
-16/3

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?

What are the sotions to the quadratic equation 9x^2=4