I would appreciate if you could help me out on this problem. I appreciate it so much. Let u and w be complex numbers such that |u|=5, |w|=3, |u+w|=6. Calculate |u+2w| with proof

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)