(354^4+5*9(5)-(56÷6)+9/5*1^1)÷99-15 8,627,272+12-9+2-6-.10-1+-0.6306397 306+-1.2612794612-(-2.5225589224)*0

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.

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65