How to find a missing angle in a right triangle with side lengths

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Analyze the graph of the cube root function shown on the right to determine the transformations of the parent function. then, determine the values of a, h, and k in the general equation.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)