Place the numbers 40 and 100 into the proportion. (Whole)(percents) (Part) what goes where?

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.