Part C- How much would that cost be? Include the dollar sign and no spaces.

The wood on the back deck of a house needs waterproofing. The shape of the deck is a rectangle with the length of 40 feet and a width of 3 yards. A gallon can of waterproof stain covers 50 square feet and costs $19.99 per can plus 8% sales tax. You go to the hardware store to purchase the waterproof stain needed to complete the job. You give the cashier $150. How much change do you receive, or how much additional cash must you find in order to be able to pay for all of the stain you need? You must show all calculations. Area of Rectangle = length X width You cannot split up a can of stain. You must show all calculations.

You are installing a wood fence.  The fence is 120 feet long.  East wood slat to be installed vertically, is 3 3/4 inches wide.  What is the total cost of the wood slats if each slat costs $1.40?

The amount raised was what percentage more than the funding goal