Answer: 28.48x10^9 ounces.
Step-by-step explanation:
We know that 1 ton = 32000 ounces.
Now, if we have 8.9x10^5 tons, how many ounces we have?
we know that each ton is equivalent to 32000 (or 3.2x10^4) ounces, so we need to multiply the number of tons by the number of ounces that each ton has:
8.9x10^5* 3.2x10^4 = (8.9*3.2)x(10^5*10^4) = (28.48)x10^(5+4) = 28.48x10^9
So 8.9x10^5 tons are equivalent to 28.48x10^9 ounces.