You want to estimate the number of students in your school who support extra funding for the science club. You survey every second student who enters the school. Determine whether the sample is biased or unbiased. biased unbiased

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.