A beаm hаs dimensiоns оf b = 18 in., h = 30 in., аnd d = 27.5 in. and is reinfоrced with 5 No. 7 bars. The concrete strength is 7,300 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 2.352706 in., determine the strain in the reinforcement.