Which jar of peanut butter is the best buy? How do I calculate this?

A.18 oz jar for $1.69
B.30 oz jar for $2.59
C.32 oz jar for $2.89
D.24 oz jar for $2.09

5 answers

Mark/Kayla/Lycia -- please use the same name for your posts.

Divide the price by the number of ounces to get the price per ounce.

A. 1.69 / 18 = $0.09 per ounce
I am sorry! But thank you Ms. Sue!
You're welcome, Lycia. :-)
A grocery store sells four different jars of peanut butter. Determine which is the best​ buy, based on the cost per unit.
14 ounce for$1.71
28 ounce for $2.94
24ounce for $2.57
34 ounce for$3.30
I picked a because it is the cheapest jar of peanut butter