Fulton is building a doghouse. He cuts 5 equal-sized pieces from a board that is 15 feet long. After cutting the pieces, he has two and a half feet of wood left. Which of these equations and expressions review, when soft 8 simplified, give the names of the five pieces of wood fulton cut.

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?