The average cost in dollars of tuition and fees at a 2 year college for selected years is shown in the given table, where 0 represents 2004.the data can be approximated by the equation y= 63.94x+293.1 predict the average annual cost in 2014 to the nearest dollar

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?