HELP!

Solve by completing the square: 2x^(2)+x-21

Ineed on 32 and 34! show work! correct gets brainliest! 50 points

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

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.