Lori started at work at 9am she usually works 5 hours her mananger asked her to stay at 3: 40pm how many hours she work in total ?

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.

Ineed in figuring out this problem.