Answer:
5.12x10^9
Step-by-step explanation: the answers an equation in scientific notation well that's what i got and it was right in my forms. anyways
(3.2 x 10^5 m)x(1.6 x 10^4 m)= 3.2x1.6= 5.12 then you just add 5 plus 4 because that's how much times you had to multiply it by, you get 10^9
if you still don't get how to do scientific notation jus search it up and look at a video. hope i helped out