Caroline is serving a fruit salad to her family. She has 4 pounds of fruit salad to serve 10 people. She wants to give an equal amount for each serving. How much fruit salad should Caroline put in each serving?

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?