A water well drilling rig has dug to a height of -40 feet after one full day of continuous use. Assuming the rig drilled at a constant rate, what was the height of the drill after 15 hours?

Which operation should be performed first according to the order of operations? 44 • 2 – [(5 + 20 • 3) – 12] + 16 ÷ 2 5 + 20 20 • 3 16 ÷ 2 44 • 2

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?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)