What is the value of c that makes this equation a perfect square trinomial x^2+6x+c=13+c

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

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

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m