Ais the answer I’m pretty sure
(2308*10)/100=230.3 so he would have to pay 230 hundos (and 30 singles)
Sharon would spend $2.50 for the light bulbs she wants.
Based on the picture, PC = PD
You could say that a(n) = 12 - 5n .
Then ...
a(1) = 12 - 5 = 7
a(2) = 12 - 10 = 2
a(3) = 12 - 15 = -3
and so on.
So it seems to work.