Question 7 (1 point) The learning curve equation is used to determine the efficiency of production. A small engineering firm that manufactures Auto parts uses 115 hours to product the first part and 79 hours to product the 28th part. What is the learning curve rate of this firm? Leave your answer as a percent with 2 decimal places Your Answer: Answer Question 8 (10 points) John invested $ 10,400 a year ago with a negotiated quarterly interest rate. He believes that his investment will become $ 16,000 five years from now. What effective annual interest rate did John receive on this investment? Leave your answer as a percent with 2 decimal places. Your