Your question is already in decimal form :) but heres fraction!
Answer:
you can cross multiply or u can 7/20 to get the answer that 7 is 35% of 20
The value is 22 because I took the test
Let "b" represent the number of biscuits Jacky baked.
.. container A holds (3/7)b
.. container B holds (1 -3/7)*(5/8)b = (5/14)b
.. container C holds (1 -3/7 -5/14)b = (3/14)b = 168
Then
.. b = 168/(3/14) = 784
Jacky baked 784 biscuits.
