Barry is helping his friend understand how to solve systems of equations. He wants to give her a problem to practice. He wants to give her a problem that has two lines that intersect at the point (-3,7). Help him by writing a system of equations that will have (-3,7) as a solution and demonstrate how to solve it.

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

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