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Arithmetic Sequences
easy
0:00.0
If
d
=
7
d=7
d
=
7
, how much larger is
a
10
a_{10}
a
10
than
a
8
a_8
a
8
?
A
14
14
14
B
7
7
7
C
21
21
21
D
49
49
49
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