I've attached the image of this question.
Answer:
g = 33%
Step-by-step explanation:
To solve this;
The values in the ends of the rows are found by adding together the two previous cells.
Thus;
For the first row, we would add the value in cell AC to the value in AD to get the value in the corresponding column named "Total". This means we add 20% +g to get 53%;
Thus;
20% + g = 53%
Subtract 20% from each side to give;
g = 53% - 20%
g = 33%
