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Foundations
easy
0:00.0
Evaluate
3
(
a
+
b
)
3(a + b)
3
(
a
+
b
)
if
a
=
4
a = 4
a
=
4
and
b
=
1
b = 1
b
=
1
.
A
9
B
12
C
13
D
15
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