I'm pretty sure the answer is -3
5/4=$406.25 thus $406.25/5*4=$325
<span>The
problem wants us to find the number that the 21% is 42.
42 is the 21% of 200
How:
=> 21% = 21 /100
=> .21
In order to get the answer we need to find a number to be multiplied by .21 and
get 42 as result.
=> 50 x .21 = 10.5
=> 100 x .21 = 21
=> 150 x .21 = 31.5
=> 200 x .21 = 42
thus, 42 is the 21% of 200.</span>
Remember
(a-b)(a+b)=a²-b²
we can rewrite what we were given into
definitely rational