Are these random sample?

The first 50 names in the telephone directory

12 jurors choosing through examination by opposing lawyers

Which expression shows the result of applying the distributive property to 3 (2x-6) ? A. 5x-3 B. 6x-6 C. 6x-18 D. 2x-18

For what real number x is the value of x^2-6x+9 negative

A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes place.

Evaluate - 7/2 + 5/6, write your answer as a fraction in simplest form.

What is - 26 * (45) and show work

44/100 in simplest form

Two integers a and b have a product of - 33. What is the least possible sum of a and b

The product of 3.3 and a number C

How many square feet is an average 3 bedroom apartment?

You have also recorded the length of time you spent each week cycling. Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 6 hours 13 hours 11 hours 22 hours 14 hours 9 hours What is the range of the time spent cycling per w?