If you buy 5 pounds of meat for $12.40 and use 8 ounces a day. What is they cost per meal?

80oz of meat for 12.40

There are 16oz in 1lb, how many ounces are there in 5lbs?

well, is just 16 added 5 times or 80oz

so, you're buying 80oz of meat for $12.40

how much is the cost of each ounce of meat? 12.40/80 or 0.155

about 15 cents and a half.

and you use 8oz a day, how much is 8oz? well, just 0.155 added 8 times, or 0.155 * 8, which is 1.24, a buck and 24cents.