Please help me ASAP. Need to hand in by today

Select the sequences that are geometric.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)