The lengths of trout in a lake are normally distributed with a mean of 30 inches and a standard deviation of 4.5 inches. enter the z-score of a trout with a length of 28.2 inches.

What is the length of bc ? enter your answer in the box.bc =

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?