Answer
The answer is 2.7$\times$$10^{-8}$
Work Step by Step
To solve for the product of (9$\times$$10^{7}$)(3$\times$$10^{-16}$), you multiply 9 by 3 which gives you 27. to multiply $10^{7}$ by $10^{-16}$, you keep the base 10 and add the exponents as it is one of the laws which equals $10^{-9}$.
The solution is 27$\times$$10^{-9}$. However, for scientific notation you can only have one number before the decimal place so you have to rewrite it as 2.7$\times$$10^{-8}$, as since you moved back a decimal place, you added one to your exponent.
