Answer:
63
Step-by-step explanation:
2+3=5
105÷5=21
21×3=63
6 C - x^3
12 a - 3x
12b - 1/5x^2y
13 a - x^2
13b - y^1/2
Hope this helps
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13·[18÷6]
13·3
39
the answer is 39
note that first we start with the problem that is the most inside of the operation