One of your customers buys a new issue municipal revenue bond on March 19. The trade settles on March 21, and the bond pays interest on February 1 and August 1. If the dated date of the bond is March 1, how many days of accrued interest are due

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?