1) If 28% of the objects in a box weighed 45 gm each and other72% weighed 55 gm each, what is the average weight of theobjects.

2) If you mix 8.0 tons of sand, 12 tons of rock, and 4.0 tonsof cement to make concrete, what will the percent by weight of sandbe?

3) If milk is $2.12 per half gallon, eggs are $0.85 perdoz, flour is $1.95 for 5 lb, sugar is $2.05 for 5 lb andshortening is $3.35 for 3 lb, what will be the cost of theingredients for the following cake recipe: 1pt (2cup) milk, 4 eggs,2lb (4 cups) flour, 1 lb (2 cup) sugar, 1 lb shortening.

4) If you have a mixture of 10 lb. sunflower seeds whichcost 32 cents per pound and 16 lb of cracked corn whic cost 18cents per pound, how much will this mixture cost perpound.