7. In each case, write an equation that models the situation described. a) An antique is purchased for $5000 in 1990. It appreci
ates in value by 3.25% each year b) A town had 2500 residents in 1990. It grew at a rate of 0.5% per year for years. single bacterium of a particular type takes one day to double. The population is P after days.