A grocery store sells a 6 pack of bottled water for $3.79 and a 9 pack for $4.50 and a 12 pack for $6.89. which package costs the least per bottle? Explain your reasoning

9 pack because 4.50 and the 12 pack is 2.39 dollar more

The package cost the least per bottle is the 9-pack for $4.50

because the 6 pack for $3.79 cost $0.63 each bottle.

sol'n. 3.79:6=0.63

while 9 pack for $4.50 cost only $0.50 each bottle.

sol'n. 4.50:9=0.50 or. 5

and the last one is the 12 pack for $6.89 cost $0.57 each bottle.

sol'n. 6.89:12=0.57