Working together it takes 20 minutes to send out a company email. if it takes the slower computer 60 minutes to do the job on its own, how long will it take the faster computer to do the job on its on

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Which graph represents the equation y =4x

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.