Which expression is equivalent to 4 to the 6th power ⋅ 4 to the −8th power? 1 over 4 to the 2nd power
1 over 4 to the 14th power
4 to the power of 2
4 to the 14th power

Can some one me with these questions

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

2x minus y equals 6, x plus y equals negative 3