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Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

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?