Finding an irrational number between which given pair of numbers supports the idea that irrational numbers are dense in real numbers?

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.