Alex says 3/4 is equal to 15/20 why is he correct 1.adding the same # to the numerator and denominator to 3/4 is 15/20. 2. multiplying the numerator and denominator in 3/4 by the same # equals 15/20

How do i do this activity, is appreciated

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

What is the radical expression that is equivalent to the expression 27 1 over 5?