Mrs. Jacobsen purchased a 5-pound package of ground beef for $12.40. She decided to use 8 ounces each day for dinner recipes. What was the cost of ground beef per meal?

First, convert the 5lb figure to ounces. There are 16oz in 1lb, so in 5lb there are 80oz (16 x 5). This means you can get 80oz for $12.40. 8oz is ten times smaller than 80z, so divide the cost by ten also. 8oz = $1.24.