In need of help ASAP!!

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.

Answer this question, only if you know the answer. 30 points and brainliest!

Adriveway is 40 yards long about how many meters long is it