Given right triangle abc, what is the value of tan(a)? five-thirteenths twelve-thirteenths twelve-fifths thirteen-twelfths

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

The length of the line segment ac is 8x-9 what is the value of x

If johnny ate 5 cans of sugar, but in the kitchen they only had 3. what did johnny eat? (he found a secret stash btw.)