Abulk grocery carried almonds sold in three different sizes of packages which packages has the most economical price in dollars per pund of almonds

Ineed with number 17 i don’t get it at alll

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?