Short quiz

Question 1 of 5

Simplify \( 5^7 \div 5^4 \).

A \( 5^{11} \) B \( 5^3 \) C \( 1^3 \) D \( 125 \)

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Question 2 of 5

Estu has 4 dresses and 3 caps. In how many different ways can Estu combine the dresses and caps?

A 7 B 12 C 8 D 64

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Question 3 of 5

Simplify and write in exponential form: \( 3^2 \times 3^{-5} \times 3^6 \).

A \( 3^3 \) B \( 3^{-3} \) C \( 3^{13} \) D \( 3^{30} \)

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Question 4 of 5

The global population of sheep is about \( 10^9 \), and the goat population is also about \( 10^9 \). What is the total combined population?

A \( 10^{18} \) B \( 2 \times 10^9 \) C \( 10^{81} \) D \( 20^9 \)

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Question 5 of 5

Evaluate \( (-3)^2 \times (-5)^2 \).

A -225 B 225 C -30 D 30

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Class 6