Should i trade my og gatorade jordans that are blue for Nike Air VaporMax Flyknit 2 "Black/Multicolors? please do research and tell me what you think look them up to comare thank you!!

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Can some one me with these questions

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.