Please help with part A & B. It says that 74% (or 0.7396) is incorrect for A.

Fountain Precision Products (FPP) manufactures high-technology measurement systems. The systems are both complex and unique in the sense that only a handful are sold, usually to a single customer's specification. The last unit of model FPP-28X sold was the eighth produced. The labor cost for that unit was $6,360.56 and required 127.2112 hours of labor. The second unit produced required 172.0000 hours of labor. Required: a. Assuming that learning has been consistent for this product, what is the rate of learning? b. Assuming that the hourly labor rate has remained the same, what was the labor cost to produce the fourth unit? Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Assuming that the hourly labor rate has remained the same, what was the labor cost to produce the fourth unit? Note: Do not round your intermediate calculations. the sense that only a handful are sold, usually to a single customer's specification. The last unit of model FPP-28X sold was the eighth produced. The labor cost for that unit was $6,360.56 and required 127.2112 hours of labor. The second unit produced required 172.0000 hours of labor. Required: a. Assuming that learning has been consistent for this product, what is the rate of learning? b. Assuming that the hourly labor rate has remained the same, what was the labor cost to produce the fourth unit? Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Assuming that learning has been consistent for this product, what is the rate of learning? Note: Do not round your intermediate calculations. Fountain Precision Products (FPP) manufactures high-technology measurement systems. The systems are both complex and unique in the sense that only a handful are sold, usually to a single customer's specification. The last unit of model FPP-28X sold was the eighth produced. The labor cost for that unit was $6,360.56 and required 127.2112 hours of labor. The second unit produced required 172.0000 hours of labor. Required: a. Assuming that learning has been consistent for this product, what is the rate of learning? b. Assuming that the hourly labor rate has remained the same, what was the labor cost to produce the fourth unit? Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Assuming that the hourly labor rate has remained the same, what was the labor cost to produce the fourth unit? Note: Do not round your intermediate calculations. the sense that only a handful are sold, usually to a single customer's specification. The last unit of model FPP-28X sold was the eighth produced. The labor cost for that unit was $6,360.56 and required 127.2112 hours of labor. The second unit produced required 172.0000 hours of labor. Required: a. Assuming that learning has been consistent for this product, what is the rate of learning? b. Assuming that the hourly labor rate has remained the same, what was the labor cost to produce the fourth unit? Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Assuming that learning has been consistent for this product, what is the rate of learning? Note: Do not round your intermediate calculations