Need help please

Compute the flux of the vector field (z?, - zy?), out of the rectangle with vertices (0, 0), (5, 0), (5, 2), and (0, 2). Preview TIP Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 243, 5+4) Enter DNE for Does Not Exist, oo for InfinityCalculate the flux of the vector field (x3, 3), out of the annular region between the a' + ? = 25 and x3 + y' = 36. Preview TIP Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 243, 5+4) Enter DNE for Does Not Exist, oo for Infinity