A rectangle has a height of 7a27a^2 7a 2 7, a, squared and a width of a4+5a2+4a^4+5a^2+4 a 4 +5a 2 +4 a, start superscript, 4, end superscript, plus, 5, a, squared, plus, 4 .

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is: