J.
K. x^0 < 0- If n is a real number, then what is the solution to the equation 27^2 n = 81(n + 1) ?
A. n = 0
B. n = 1
C. n = 2
D. n = 3
E. n = 4- Which of the following is an irrational value of n that is a solution to the equation |n^2 − 30| − 6 = 0 ?
A.
B. 6
C.
D.
E.
- Consider all pairs of positive integers a and b whose sum is 6. For how many values of a does ab = ba ?
A. None
B. 1
C. 2
D. 3
E. 6