Determine the required calculation method to find the total welding costs for the project and perform the calculation. You are managing a welding project and need to calculate the welding costs involved. The project involves welding various joints using different welding techniques, and the following data is provided: Joint 1: Butt joint - Welding Technique: Gas Metal Arc Welding (GMAW) - Welding time: 4 hours Joint 2: T-joint - Welding Technique: Shielded Metal Arc Welding (SMAW) - Welding time: 3.5 hours Joint 3: Lap joint - Welding Technique: Gas Tungsten Arc Welding (GTAW) - Welding time: 5 hours Welding Labor Rate: $50 per hour