Greg rented a truck for one day. There was a base fee of , and there was an additional charge of cents for each mile driven. Greg had to pay when he returned the truck. For how many miles did he drive the truck?

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?