Answer:
The last package having 18 ounce beans in $6.30 is best to buy.
Step-by-step explanation:
Given that:
A 7-ounce package costs $2.52
for 1 ounce it will cost = $2.52/7
1 ounce will cost = $0.36
A 15-ounce package costs $5.55
for 1 ounce it will cost = $5.55/15
1 ounce will cost = $0.37
An 18-ounce package costs $6.30.
for 1 ounce it will cost = $6.30/18
1 ounce will cost = $0.35
So the last package having 18 ounce beans in $6.30 is best to buy.
i hope it will help you!
