18 is 0.4 of what because i dont know
To find out what 18 is 40% of, all you need to do is divide 18 by 0.4.18 / 0.4 = 4518 is 0.4 of 45.Hope that helped =)
'is' means equals'of' means mutily so we have18 =0.4 times whatdivide both sides by 0.445=whatthe answer is the number is 45