Aconvenience store sells 1/3 pound of one brand of trail mix for 1.50 and 1/2 pound of another brand of child makes for 2.15 which bread has a lower price per pound explain your reasoning

To compare these two prices, find the unit cost in each case, as follows:

$1.50        3
* --- = $4.50/lb
(1/3) lb     3

$2.15         2
* = $4.30/lb
(1/2) lb      2

The 2nd food is the cheaper one, $0.20 per pound cheaper.