(Photo) will mark you branliest

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.

Two lines that do not intersect are skew. always sometimes or never

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle