EASY !! I WILL MARK BRAINLIEST AND CA$HAPP $10

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?

Find the average rate of change for the given function drom x=1 to x=2

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?