Is 1.8 greater than or less than 31/16?

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

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?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?