There are 6 cards- -7 -5 -3 3 1 -1
arrange the cards into three pairs with the same total

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

What are the solutions of the following system? y=-2x^2 y=x-2

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? 0.62 0.78 0.84 0.96