Answer:
4000
Step-by-step explanation:
because the 200+200 are in parenthesis that shows that you will need to do it first.
so.. 200+200=400
and now the second part is asking for the square root of 100. We know that 10 times 10 is 100. This means that 10 is the square root of 100.
And for our last step they ask to multiply our two answers.
so 400 x 10= 4000
