If y varies directly with x and y =28 when x = 4 what is y when x = 3 show all your work

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

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

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great