A contractor cut 28 feet of wire into sections that were 4 and 2/3 feet long. How many pieces of wire did the contractor have? Please help!!!

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

When only separate discreet points are graphed it is called?

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?