A town has 4,800 residents, and the population grows 3% each year. Which function models the population P after t years?

A car is bought for $22,000 and loses 15% of its value each year. Which function models the value V after t years?

A balance of $500 grows 6% each year. A student wrote $B(t)=500(0.06{)}^t$. Which model corrects the student's error?

A culture starts with 300 cells, and the number of cells doubles every hour. Which function gives the number of cells N after h hours?

A sample of 160 mg of a substance loses half its mass every hour. Which function models the mass A remaining after t hours?

A gym membership costs $1,200 this year, and the cost rises 8% each year. Which expression gives the cost 5 years from now?

The function $y=750(1.12{)}^x$ models a quantity over x years. What does the model show?

In the model $f(x)=90(0.6{)}^x$, what happens to the output each time x increases by 1?

A savings account holding $2,000 earns 5% interest each year on the whole balance. This situation is modeled by an exponential growth function.

Algae cover 12 square meters of a lake, and the covered area falls 20% each week. How is this situation classified, and what factor does the model use?

Compare the functions $f(x)=8(1.25{)}^x$ and $g(x)=8(0.75{)}^x$. Which statement describes them?

A car loses 12% of its value each year, while a deposit earns 12% interest each year. Which one is modeled by exponential decay?

A population is modeled by $P(t)=1500(0.93{)}^t$, where t is in years. What percent of the population is left at the end of each year?

In the model $y=250(1.07{)}^t$, what is the initial value?

What is the decay factor in the model $A(t)=3000(0.88{)}^t$?

The model $V(x)=18(1.5{)}^x$ describes a quantity after x months. By what percent does V increase each month?

A colony is modeled by $N(t)=200(1.10{)}^t$, where t is in years. How many are in the colony after 2 years?

A deposit of $1,500 earns 4% interest compounded annually. What is the balance after 3 years, to the nearest cent?

A dose of medicine in the blood is modeled by $A(t)=240(0.75{)}^t$, with A in milligrams and t in hours. How many milligrams remain after 3 hours?

A deposit of $4,000 earns 5% interest compounded annually. To the nearest dollar, how much interest has the account earned after 2 years?