Subtracting seven from sixteen results in nine
The solution is nine
The function

represents a parabola positioned at the vertex (5, 3).
Attached here is the graph depicting this function.
The provided number is 0.555, which can also be expressed as

In examining the digits post-decimal, each subsequent digit decreases to 1/10 of the preceding one.
Thus, the assertion that "the value of the 5 in the thousands place is ten times as great as the 5 in the hundredth place" is incorrect.