In an isosceles triangle, the equal sides are 2/3 if the length of the base. Determine the measure if the base angles. Please help me with good explanation, I have a trig exam soon!

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

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

What line represents the relationship between r and s