To find the sum of consecutive integers, starting at 1, we use the formula n(n+1)/2 , where n is the last number. Find the sum of the numbers from 1 to 100.

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?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Which statements are true about additional information for proving that the triangles are congruent check all that apply