Unit 5 Lessons 1-3

Which expression equals 2⁷?

• 2 + 2 + 2 + 2 + 2 + 2 + 2
• 2 * 2 * 2 * 2 * 2 * 2 * 2
• 2 * 7
• 2 + 7

Purse A starts with $1000 and grows by $200 each day. Which set of dots shows Purse A's growth?

• the red dots
• the blue dots
• incorrect
• g

Purse B starts with $0.01 and doubles each day. Which set of dots shows Purse B's growth?

• the red dots
• the blue dots
• incorrect
• g

Jada rewrites 5 * 3^x as 15x; do you agree? Explain your reasoning.

• Yes, 5 * 3 = 15 so 15x
• No, she is typoing 3^x as 3x
• I am not sure. This is a very difficult question.

Joe invests in $100 in Wallstreetbets and doubles his money every year (unrealistic). How long does it take to quadruple

• 1 year
• 2 years
• 4 years
• 6 years

CHALLENGE - Mr. Desai increases his net worth by 10% every year. How much does his net worth increase over 3 years?

• 33.1%
• 20%
• 30%