Answer is Php 184.15
Explanation :-
Since Margie earned Php 100 on Saturday
Since Margie earned Php 55.65 on Sunday
Since Margie earned Php 28.50 on Monday
Then to get her earned on the 3 days, we will add the three amounts :
![100.00 + 55.65 + 28.50](https://img.qammunity.org/2023/formulas/mathematics/high-school/75nnnj2s5uni4qnviwjsy0ib8zkvx3jivd.png)
We will start adding the digits from right to left
![0.00 + 0.05 + 0.00 = 0.05 \\ 0.5 + 0.6 + 0.0 = 1.1 \\ 8 + 5 + 0 = 13 \\ 20 + 50 + 0 = 70 \\ 0 + 0 = 100](https://img.qammunity.org/2023/formulas/mathematics/high-school/cknd5bdghaa7rh0i2u6tf3tktgwjo540lx.png)
Now , Add all the answers :
![100 + 70 + 13 + 1.1 + 0.05 = 184.15](https://img.qammunity.org/2023/formulas/mathematics/high-school/s3v6oovongrxbjuzdsf1a2nbs1fvo62hxw.png)
Hence, she earned Php 184.15 on the three days.