1000 watt inverters 12v

Creating arithmetic expression equal to 1000 using exactly eight 8''s

I would like to find all the expressions that can be created using nothing but arithmetic operators, exactly eight $8$''s, and parentheses. Here are the seven solutions I''ve found (on the Internet)...
Why is kg/m³ to g/cm³1 to 1000?

I understand that changing the divisor multiplies the result by that, but why doesn''t changing the numerator cancel that out? I found out somewhere else since posting, is there a way to
sequences and series

What does the sum of all the numerals from the numbers from $100$ up to $1000$ equal to?
probability

A hypothetical example: You have a 1/1000 chance of being hit by a bus when crossing the street. However, if you perform the action of crossing the street 1000 times, then your chance of being
combinatorics

The number of bacteria in a culture is 1000 and this number increases by 250% every two hours. How many bacteria is present after 24 hours?
arithmetic

1 the number of factor 2''s between 1-1000 is more than 5''s.so u must count the number of 5''s that exist between 1-1000.can u continue?
algebra precalculus

Given that there are $168$ primes below $1000$. Then the sum of all primes below 1000 is (a) $11555$ (b) $76127$ (c) $57298$ (d) $81722$ My attempt to solve it: We know that below
$1000$ small cubes are assembled into a larger cube. If one layer of

$1000$ is the number of small cubes in the original cube. Each face of the original cube contains $10times10=100$ small cubes, so the effect of removing the small cubes on all six faces,
combinatorics

Question Statement An investor has $$20,000$ to be invested amongst $4$ possible investments. Each investment must be a unit of $$1,000$. If all the money needs to be invested then
elementary probability

A big part of this problem is that the "1 in 1000" event can happen multiple times within our attempt. Compare this to if you have a special deck of playing cards with 1000 cards in it, exactly