Sale amounts during lunch hour at a local subway are normally ditributed, with a mean $ 6.6, and a standard deviation of $ 1.27. [Round your answers to two decimal places.] a. Find the probability that a randomly selected sale was at least $ 9.55? b. A particular sale was $ 5.13. What is the percentile rank for this sale amount? % c. Give the sale amount that is the cutoff for the highest 85 %? d. What is the probability that a randomly selected sale is between $6.00 and $10.00? e. What sale amount represents the cutoff for the middle 34 percent of sales? The smaller number here) Bigger number here)