Extracted text: For the beam shown, Given: f'c = 24 MPa fs = 115 MPa n - 8 a. Locate the neutral axis when the beam is already cracked. b. Determine the moment of inertia at the neutral axis of the cracked beam. c. Determine the allowable moment of the cracked beam. 150 mm 150 mm 150 mm 150 mm 575 mm 5- 20 mm 70 mm 70 mm