N(a intersection b)=9, n(a intersection b intersection c)=6, n(b intersection c)=8, n(b-a)=4, n(b union c)=25, n(a intersection c)=12, n(a union b union c)=27
find, if possible the number of elements in a, b, and c using the given information

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: