Which expression is the appropriate expression for 5072?

The question asks to identify the appropriate expression for the number 5072 from the given options. Both options (a) and (b) evaluate to 5072. We need to determine which one is considered the "appropriate expression" in the context of place value decomposition.

Let's evaluate each option:

a)

$$(50 \times 100) + (7 \times 10) + (2 \times 1)$$ $$= 5000 + 70 + 2$$ $$= 5072$$

b)

$$$$