Which representation is incorrect?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.