Will mark brainliest to the best
simplify 12^3/12^7
a. 12^4
b 1/12^4
c 1/12^-4
d 12^10

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

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?

How do i do this activity, is appreciated