What is the image of the point (9,8)(9,8) after a rotation of 180 counterclockwise about the origin?

If the measure of xyz is 81 what is the measure of yz

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

Ithink i know it but i want to be sure so can you me out ?