Question

21. Choose the better or best buy.
2 pt for $1.59 8 oz for $0.39
6 oz for $0.30
22. Choose the better or best buy.
5 lb for $0.99 1 lb for $0.75
25 lb for $4.89

Answer 1

For 21 note that there 16 ounces in a pint so write out each ratio. Each result will be the price per unit...so the smaller price per unit is the better the value is.

\[\frac{$1.59}{16*2}=?\]\[\frac{$0.30}{6}=?\]\[\frac{$0.39}{8}=?\]For 22 it's basically the same thing.