Answer:
the coffee does she need is 
Step-by-step explanation:
Given that
Mx Duncan used three fourth of the cup of coffee
And, she realized that she only required half of the three-fourth of coffee
We need to find out the how much of the coffee does she need
So,

Hence, the coffee does she need is 
the same would be considered and relevant
Answer:
Q = 28
Step-by-step explanation:
Answer:
3x1000=3000
2x100=200
3000-200=2800
Step-by-step explanation:
It isn't proportional because it is not reduced to the lowest terms
Instead 20 over 100 = 1 over 5
Hope this helps!
If I did the math right, the answer would around 3,552.89. Hopefully this was helpful.