I had $$\(g\)$$ invited guests at my party. Each invited guest brought 2 uninvited friends. Each person who came, whether invited or not, brought two gifts. How many gifts were brought?
A.
\((g+2) \times 2\)
B.
\((g \times 2)+2\)
C.
\((g+2 g) \times 2\)
D.
\((g+2 g) \times 2 g\)
Exam No：2020-2021 Math League First Round Grades 8-9 Year：2021 Question No：1
Answer:
C
Knowledge points:
G8-9 - Algebra - Functional Notation & Custom Operators
Solution:
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