(A2-6.4.1) Exponential Growth and Decay

What is 105% of 150?

• 155.5

• 156.5

• 157.5

• 158.5

What is 100.5% of 20?

• 20.1

• 20.2

• 20.3

• 20.4

The original value of Derek's investment is $1,600.

If the value has increased by 8% each year, find the value of her investment after 10 years.

• $3424.28

• $3434.28

• $3444.28

• $3454.28

In 2014, there were 248 students enrolled at Upright High School.

Since then, the number of students has increased by 2.5% each year.

How many students are enrolled in 2019?

• 271

• 281

• 291

• 301

500 decreases by 20%. What is the new value?

• 450

• 400

• 350

• 300

What do you multiply a number by to decrease it by 25%?

• 25

• .25

• .75

• 2.5

Jared made an investment of $8,000 and it is losing value at a rate of 6% each year.

What is the value of his investment after 5 years?

• $5851.23

• $5861.23

• $5871.23

• $5881.23

Rachelle bought a brand new car for $25,000 in 20010.

If the car depreciates in value approximately 4% each year, find the value of her car in 2017.

• 187786.19

• 187796.19

• 187806.19

• 187816.19

Dartanion deposited $1,000 into an account that earns 12% interest.

How much money will he have in 5 years if the interest is compounded weekly?

Hint: There are 52 weeks in a year.

• 1790.86

• 1800.86

• 1810.86

• 1820.86

Tammi opened a savings account that offered 2% interest compounded monthly.

If he deposited $500 into this account, how much will she have in his account after 10 years?

Interest Earned = Final Amount - Initial Amount

• 600.60

• 610.60

• 620.60

• 630.60