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An expression is a combination of numbers, operators, grouping symbols (such as brackets and parentheses) and/or free variables and bound variables arranged in a meaningful way which can be evaluated. Bound variables are assigned values within the expression (they are for internal use) while free variables can take on values from outside the expression.

In mathematics, the logarithm of a number to a given base is the power or exponent to which the base must be raised in order to produce the number.

For example, the logarithm of 1000 to the base 10 is 3, because 10 raised to the power of 3 is 1000; the base 2 logarithm of 32 is 5 because 2 to the power 5 is 32.

Not sure this is accurate.  16^0 = 1.  But  bx=y   16^1 = 16  ?????
April 11, 2009, 7:13 am

My mistake- Got it!
April 11, 2009, 7:15 am

How many legs in total do two chickens, two ducks,and two sheep have?