The richter scale is used to compare the intensities of earthquakes. an increase in 1 of magnitude on the richter scale represents a tenfold increase in intensity. an earthquake registers 7.4 on the richter scale and is followed by an aftershock that is 1000 times less intense. what is the magnitude of the aftershock?

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.