Answer
The answer is below.
Work Step by Step
Recall, numbers with negative exponents in scientific notation are small while numbers with large exponents are large. Thus, in terms of size:
$2,998\times 10^{-9}, .0008, 3.14 \times 10^7, .041 \times 10^9, 55 \times 10^6$
In terms of significant figures:
$.0008 = .041\times 10^9 = 55 \times 10^6 < 3.14 \times 10^7 < 2.998 \times 10^{-9}$
