1 cup is 250 grams or 8 ounces. There are 10 cups in a 5 lb bag.
About 4 and 1 small one. martiegal4000 thinks; it depends on the bag there is no exact amount
There are about 10 servings per 1 lb bag. 1 cup makes 2 servings, so about 5 cups.
Domino's Sugar 2 lb bag says 4-1/2 cups, so 1 lb would be 2-1/4 cups.
1 lb. of sugar = 2 1/4 cups9 cups total
The Hershey's web site states that there are 90-95 kisses per 1 lb bag.
That is approximately 1/2 a cubic foot.
This all depends on the mix you want. I assume you mean cement when you mention the 80lb bag of concrete. I have pushed concrete in my day... Bag cement mix is the same as concrete. Don't be funny. How many 80 pound bags will make 1 yard of concrete? I want a definitive answer this time.
There are 7 1/2 cups of unsifted powered sugar in a 2 LB bag
Beef Stroganoff
I think one 80 lb. bag will cover about 4 square feet 1 inch thick
You need to tell us how big a bag. Typically they vary from a 1 pound bag to 50-100 lb sacks.