Answer:

Step-by-step explanation:
Follow PEMDAS Order Of Operations
PEMDAS: Parenthesis, Exponents, Multiply, Divide, Add, Subtract
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Calculate Within Parenthesis || [2 ( 2 + 9) - 4 ] = 7
= 7 · [ 15 + (10 - 5) ]
Calculate Within Parenthesis || [ 15 + (10 - 5) ] = 20
= 7 · 20
Multiply || 7 · 20 = 140
= 140
Mordancy.