Do you have a graph or a picture? It would be easier to explain
The answer Is C: SAS Congruence Postulate.
Erica would have sold 121 subscriptions in 3 days.
(4h+2)(2h+8)
4htines 2h= 8h^2
4htimes8=32h
2 times 2h=4h
2 times 8=16
Add Middle two you have
8h^2+36h+16