Ilowkey need on number five like i don’t get it . am i doing something wrong cause i feel like i am ? and which equation would you chose . (for brainlest answer)

What is the perimeter of square abcd? units units 28 units 37 units

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

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.