Lumber is measured in board feet, where a board foot is the volume of a piece of lumber one foot square and one inch thick. (a) How many board feet are in a two-by-four (2" by 4") that is 18 feet...

Extracted text: Lumber is measured in board feet, where a board foot is the volume of a piece of lumber one foot square and one inch thick. (a) How many board feet are in a two-by-four (2" by 4") that is 18 feet long? The volume of a rectangular solid is length times width times height. (b) Lumber is priced in dollars per thousand board feet. Suppose two-by-fours 18 feet long are $680 per thousand board feet. What is the cost of 144 two-by-fours, each 18 feet long? .... board feet. (a) A two-by-four (2" by 4") that is 18 feet long is (Type a whole number.) (b) The cost of 144 two-by-fours, each 18 feet long, is $ (Round to the nearest cent.)