Growth and Decay Factors Quiz

The population of frogs is growing at a rate of 20% per year. What is the decadal growth factor?

• 1.20

• 1.40

• 6.19

• 4.00

The population of a city is decreasing at a rate of 16% per year. What is the decadal decay factor?

• 0.1809

• 0.1749

• 0.3765

• 0.2775

A bank account has an annual interest rate of 10%. What is the monthly growth factor? to five decimal places

• 1.03634

• 1.00797

• 1.00496

• 1.05345

A loan reduces by 12% each year due to payments. What is the monthly decay factor?

• 0.988

• 0.985

• 0.992

• 0.989

A population of rabbits decreases by 5% each month. What is the monthly decay factor?

• 0.95

• 0.90

• 0.85

• 0.80