HELP PLEASE!! These three data sets show the number of text messages sent by Jada, Diego, and Lin over 6 days as well as the mean number of text messages sent by each student per day.

Jada:
data: 4, 4, 4, 6, 6, 6: mean 5

Diego:
data: 4, 5, 5, 6, 8, 8: mean 6

Lin:
data: 1, 1, 2, 2, 9, 9: mean 4

Find the Mean absolute deviation. PLEASE!!

If lmn=xyz, which congruences are true by cpctc? check all that apply

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

If sin(x) = 0 and cos(x) = 1, what is tan(x)?