Answer:
63
Step-by-step explanation:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90.
A:63
(2×100) + (4×1) + (1÷10) + (7÷100)
the simplest form is n • (3n3 - 8)