Which expression can be modeled using the number line,

What’s the domain of this function? fastttt

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

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