if a silver alloy that costs $7.25 an ounce is going to be mixed with 45 ounces of silver alloy that costs $12 an ounce to make a mixture that costs $8 an ounce, how many ounces of the $7.25 an ounce alloy must be used

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

17 in long 1.3 ft wide and 8in high what is the volume

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.