450 g in 2:13
<u>Total proportion asked for </u>=2+13=15
<u>Now comparing g with ratio, or whatever </u>
450/15=30g
Therefore 1 in ratio depicts of 30g
So final answer = 

More to know, daily bit of knowledge: The Binomial Theorem:

B. miles because its a longer distance with leads to a smaller number
It has to be A I’m sorry if I’m wrong
It’s too blurry to see retake the picture and ask the question again for help