HEY CAN ANYONE PLS PLS PLS ANSWER DIS MATH PROBLEM I RLY NEED IT

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?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes