Expression best estimates Negative 18 and one-fourth divided by 2 and two-thirds?

Use circumcenter theorem to solve for the given values

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample