Answer:
I think its 21 but iam not sure about the rest
45 × 13 = 585
Which is exactly how much he'd need to pay back his sister and buy the bike. So, it would take him 13 weeks.
$5,796 is how much it would be. hope it helps
<span>2a(7a²-3a+9)
=14a^3 - 6a^2 +18a
answer is </span><span>D. 14a³-6a²+18a</span>