Can someone please help me?

If a boat travels 3 miles in 1.5 hours how far will it travel in 1 hour

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?

What is the measure of sty in oo below? 130 310 230 50