The answer is d to the question!!!
the most often the start of a scientific investigation. is observation
It's 4. just took it, that's 1000% the right answer. that other person stinks for that non-answer, sorry. hope this helps.
ps. if it's not obvious, you figure it out by taking the hypotenuse (120) and putting it over the height (30). 120/30 is pretty simple division.
False it affects everyone and anything. Global warming for example my friend :/
<span>Aldohexose is the common name</span>
