Answer:
$51.2
Explanation
80×80=6400÷100=$64
64×80=5120÷100=$51.2
Answer:51.20
Step-by-step explanation:
98÷14
=7
686÷98
4 802÷686
33 614÷4 802
Then the common ratio q for this sequence is 7
recursive formula : an+1 = q×an = ?
an= a1 × qⁿ⁻¹
=2×7ⁿ⁻¹
an+1 = q×an
= 7×(2×7ⁿ⁻¹)
= 2×7ⁿ
Ok