One sum of money is invested at 10%. A second sum, which exceeds the first by $300, is invested at 14%. The annual interest on the second sum exceeds the interest on the first sum by $62. What are the two sums?

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?