Question 4594
The commutative property of multiplication means that we can multiply numbers in any sequence, so first multiply the numbers that are NOT 10 raised to a power.

{{{9.7*8.5 = 82.45}}} = {{{8.245 * 10^1}}}

so now we have {{{8.245*10^1*10^8*10^3}}}

add the exponents to get the solution
{{{8.245*10^12}}}

5.5*9.1 = 50.05 = {{{5.005*10^1}}}

{{{5.005*10^1*10^-7*10^-2}}} =
{{{5.005*10^-8}}}