If 3^x*4^y = 59,049 and x – y = 10, then x = ?  Choose the correct answer.
A) 10
B) 11
C) 12
D) 13
E) 14
Since 59,049 is an odd number, it is not a multiple of 4.   This means that y must equal zero.   Since x - y = 10 and y = 0, then x = 10.   The answer is 10.
<result>A</result>
If 3^x*4^y = 59,049 and x – y = 10, then x = ?