The ratio of girls to boys in the school choir is 7: 4. if there are 33 students in the choir, how many are girls

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.

Josephine has a great garden with and area of 2x2 + x - 6 square feet

If eh = hg and hg=16, find the diameter of k