Amajor record label has seen its annual profit decrease in recent years. in 2011 the labels profit was $139 million. by 2015, the labels profit had decreased by 40%. suppose the record label wants to increase its profit to 139$ million by 2017. by what percent must the labels profit increase from its 2015 value to reach 139$ million within the next two years?

Can someone show me step by step how to do this?

Aiko jumped rope for 20 min and stopped at 8: 05 when did she start

The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?