Grab Bag
What is the similarity between 2+2=5 and your left hand?
Neither are right
Multiply the number of thumbs that everyone in the world has. What is the result?
0, because at least one person in the world doesn’t have thumbs.
Simplify: log79 + log7 4
log7 9*4 = log7 36
Vanessa invested $2,500 into an account that will increase in value by 3.5% each year. Write an
exponential function to model this situation, then find the value of the investment after 20 years.
$4974.47
The population of a small town was 10,800 in 2002. Since then, the population has decreased
at a rate of 2.5% each year. Write an exponential function to model the situation, then find the
population of the town in 2020.
6847 people
What number do you get if you multiply all the numbers on a smartphone keypad?
0
If you have 30 red socks, 20 white socks, and 10 blue socks, how many will you pick to get at least 1 matching pair without looking?
4
Simplify: log5 2 + log5 13
log5 2*13 = log5 26
The average price of a movie ticket in 1990 was $4.22. Since then, the price has increased by
approximately 3.1% each year. Write an exponential function to model this situation, then find
the price of a ticket in 2016.
$9.33
Manny bought a brand new car in 2012 for $28,750. If the car depreciates by 12% each year,
write an exponential function to model the situation, then find the value of the car in 2018.
$13351.62
What loses its head in the morning and gets it back at night?
A pillow
On a farm, there are ducks and cows. There are 18 legs and 7 heads in total. How many ducks are there?
5 ducks and 2 cows.
Simplify: log2 80 - log2 5
log2 (80/5) = log2 16
A virus has infected 400 people in the town and is spreading to 25% more people each day.
Write an exponential function to model this situation, then find the number of people that will be
infected in 10 days.
3725 People
An investment of $12,000 is losing value at a rate of 4% each year. Write an
exponential function to model the situation, then find the value of the
investment after 9 years.
$8310.41
What has a head and a tail, but no body?
A coin
Two people have $100 in total. One has $40 more than the other. How much does each have?
$30 and $70
Simplify: log2 30 - log2 3
log2 (30/3) = log2 10
The original value of an investment is $1,800. If the value has increased by
7% each year, write an exponential function to model the situation. Then,
find the value of the investment after 15 years.
$4966.26
Mark bought a brand new car for $35,000 in 2008. If the car depreciates in
value approximately 8% each year, write an exponential function to model the
situation. Then, find the value of the car in 2015.
$19,524.63
What is seen in the middle of March and April, but not at the beginning or end of either month?
The letter R.
How many sides does a circle have?
Two — the inside and the outside.
Simplify: log6 83
3 log6 8
In 2002, there were 972 students enrolled at Oakview High School. Since
then, the number of students has increased by 1.5% each year. Write an
exponential function to model the situation, then find the number of students
enrolled in 2014.
1162 Students
Define each letter in the exponential decay equation.
a: initial amount
r: decay rate
t: time