A machine makes 636 boxes in 3 hours. What is the unit rate of boxes the machine makes per hour?

Find the area of the regular hexagon if a side is 20 cm.

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?

Rationalize the denominator- 12x/√x-10