Y is the midpoint of XZ. If XZ = 8x – 2 and YZ = 2x + 3, find x. Select each definition, postulate, or theorem you will use.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2