What is 3.962 rounded to the nearest hundreth and ones place hallppp lol

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.

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1