Answer:
2A
Step-by-step explanation:

Keep in mind that, when the logarithm base is not explicitly written, base 10 is assumed, therefore,
Answer: 36
Step-by-step explanation:
Each side of square are equal length
4 sides
9+9+9+9=36
Maggie =x
brother = 2x-3
x+2x-3= 24
27 /3= 3 x/3
x= 9 years