A student began a study with a sample of 2,500 bacteria. He noticed that the number of bacteria in the sample ofter t days can be modeled by the equation P=2,500. In this equation, what does represent?
P = 2500. 46
In this equation, what does 4' represent?
The number of
bacteria increases
by 4 bacteria each
day.
The number of
bacteria increases
by a factor of t
each day for 4
days.
The number of
bacteria increases
by a factor of 4
each day.
The number of
bacteria increases
by t bacteria after 4
days.

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.