CAN YOU ANSWER A AND B AS WELL

Problem Solving 1. (3 points) A machine that produces a certain piece must be turned off by the operator after each piece is completed. The machine "coasts" for 15 seconds after it is turned off, thus preventing the operator from removing the piece quickly before producing the next piece. An engineer has suggested installing a brake that would reduce the coasting time to 3 seconds. The machine produces 50,000 pieces a year. The time to produce one piece is 1 minute 45 seconds, excluding casting time. The operator earns $30 an hour including other direct costs. The brake will require servicing every 10 hours of operation. It will take the operator 30 minutes to perform the necessary maintenance and will require $20 in parts and material. The brake is expected to last 7,500 hours of operation (with proper maintenance) and will have no salvage value. How much could be spent for the brake if the Minimum Attractive Rate of Return is 10% compounded annually? (Your answers should be in manual calculation. Do not using excel or compound interest table. Show all your steps with equations, not notations.) a. What's the annual cost without brake? b. What's the annual cost with brake? c. Draw the cash flow diagram (include all elements) d. How much could be spent for the brake if the Minimum Attractive Rate of Return is 10% compounded annually