Simplify the expression, (4-3i)(-3+6i)-(2-i)

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Me asap! what is the slope of this line? enter your answer in the box.