Help please (I have to write something so that I can post a question) .

Geometry paper. i don't know how to do the rest. questions 5. 8. 9. and 10.

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.

Which value would be a solution for x in the inequality 47-4x< 7