math
posted by pam .
whats the unit rate:
882 yd in 9 secs
A grocery store sells four different jars of peanut butter. Determine which is the best buy, based on the cost per unit.
14 ounces for $1.44 20 ounces for $1.88
30 ounces for $3.48 38 ounces for $4.10
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