#### 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:
$.0008 = .041\times 10^9 = 55 \times 10^6 < 3.14 \times 10^7 < 2.998 \times 10^{-9}$