Please Help me i dont understand this.

2. (5 points) Write a recursive rule for the arithmetic sequence: 3.9, 8.2, 12.5, 16.8, 21.1, ...

Intro biblioteca sunt 462 de carti cu 198 mai putine enciclipedii si cu 47 mai multe dictionare decat enciclopedii cate enciclopedii sunt in biblioteca

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.

Two similar triangles are shown. triangle mno was dilated, to create triangle yhq. rotated reflected translated dilated