## Algebra 1

$8\times10^{-3}$
We start with the given expression: $4(2\times10^{-3})$ We rewrite the expression using the associative property: $4\times2\times10^{-3}$ We multiply the first two terms: $8\times10^{-3}$ The number is now in scientific notation, as 8 is between 1 and 10, and -3 is an integer.