Answer:
1st
Step-by-step explanation:
1. 8 ounces for $2.79, then 1 ounce is for
[tex]\dfrac{\$2.79}{8}=\$0.34875.[/tex]
2. 15 ounces for $5.54, then 1 ounce is for
[tex]\dfrac{\$5.54}{15}=\$0.369\overline{3}.[/tex]
Since [tex]\$0.34875<\$0.369\overline{3},[/tex] the cheaper unit rate is the first one.
