Calculate the probability that exactly 97 out of 100 randomly sampled American adults had chickenpox during childhood. (Round your answer to four decimal places.)

Solve the system of equations. y= 2x y= x^2 - 15

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?