Please provide an answer for all the questions first from (2-4) and then from(5-7) with step-by-step solutions.

2-4. Evaluating integrals Evaluate the following integrals as they are written. 3. J J. dy dx 4. f fo xe dy dx 5-7. Changing the order of integration Assuming f is integrable, change the order of integration in the following integrals. 5. [ J f(x. y ) dy dx 6. [:[' f(x.y) dx dy 1-y f (x, y) dx dy