Membership to a racket ball club has an application fee and a monthly fee that can be modeled by the function c(m) = 12.50m + 49, where m is the number of months of membership. the club is running a special in which the application fee is being waived as well as the first month's payment. this can be modeled by the function s(c) = c – 12.50.

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

The triangles are similar. what is the value of x? show your work.

Determine the relationship of ab and cd given the following points