Final answer:
To write the expression 1/(6/99) as a whole number with a negative exponent, we can rewrite it as (99/6)^(-1).
Step-by-step explanation:
An expression written as a whole number with a negative exponent can be obtained by flipping the original expression and changing the sign of the exponent. In this case, the expression 1/(6/99) can be rewritten as (6/99)^(-1).
To simplify further, we can invert the fraction to get 99/6 and change the sign of the exponent to -1, resulting in (99/6)^(-1).