To multiply a number by 99 sophia likes to multiply by 100 and then subtract 1 group of the factor. here is a picture of her thinking.

Can someone me i’m confused. will give brainliest and a whole bunch of points

Find the ratios of the corresponding sides

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.