The planet Neptune orbits the Sun. Its orbital radius is 30.1 astronomical units (AU).
Assuming Neptune's orbit is circular, what is the distance it travels in a single orbit around the Sun?

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

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?

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?