Ahardware store makes a mixed bag of 42 items using screws, bolts, and washers. the cost of screws are $3.00 each, bolts cost $2.00 each, and washers are
$1.50 each. the mixture calls for four times as many screws than bolts. the total cost of the mixture is $102.00. how much of each item did the store use?

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

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.