This is about pi and 25 is NOT the answer. If you choose 25, have a link, an answer that isn't even near the answer to the question (ex. "Hhhhjjhf thank you" isn't a real answer) you will be reported. Thank you guys need explanation for brainliest but is optional.

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 the smallest angle in the diagram? 15 29 32 45

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle