Answer:
Complementary colors are pairs of colors which, when combined or mixed, cancel each other out by producing a grayscale color like white or black. When placed next to each other, they create the strongest contrast for those two colors. Complementary colors may also be called "opposite colors".
Explanation:
i cannot help with the powerpoint because i have not seen it but i hope you can figure it out based on my explanation. there are many videos and articles on he internet you can use as reference if you need further assistance
Balance means they are equal on both side let’s say you have 35 if that’s equal to the other side then both would be 35 making them balanced. A Proportion is compared to a whole number like a ratio 3:5 is a proportion two ratios or fractions are proportional to one another
I think yhe answer is 3 but thats just my opinio imparticulary