Election results are broadcast and the number of people in a small town who have heard the news within t hours of the broadcast is p (t) = 10,000 (1- e-0.40t). How long will it take for 9,000 people to hear the news?

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Suppose you plan to upgrade a new phone when your IPhone X loses half of its value. Use P(t) to determine algebraically in how many months this will happen. Show all work.  P(t)=720(.9692)t

The area covered by a marsh, A, starts at 130 acres and drops by a factor of 14 each year for n years. Write a formula for A=f(n).

The population of a small town is given by P(t) = 504 (1.05)t . Determine what the population will be in 10 years. Round your answer to the nearest whole number.

The amount of solar power installed in the US can be modelled as M(x) = 15.45(1.46*) megawatts, where x is the number of years since 2000. This model tells us that: In 2000, there 15.45 megawatts installed, and the amount is growing by 146% per year In 2000, there were 15.45 megawatts installed, and the amount is growing by 46% per year In 2000, there were 1.46 megawatts installed, and the amount is growing by 1545% per year In 2000, there were 1.46 megawatts installed, and the amount is growing by 15.45% per year.

The decline of a city's population is modeled by P = 1.8  106e−0.007t. How large will the population be when t = 20? (Round your answer to the nearest whole number.)P =