Whole-number exponents Knowledge-Based Practice

Questions

1. 1.

   What is the value of the expression $\frac{3^6}{9^2}$?

   • A) 3
   • B) 9
   • C) 27
   • D) 81
2. 2.

   If $b^4 = 81$ and $3^k = 243$, where $b$ and $k$ are positive whole numbers, what is the value of $b + k$?

   • A) 8
   • B) 7
   • C) 9
   • D) 14
3. 3.

   Which of the following expressions has the greatest value?

   • A) $2^5$
   • B) $3^3$
   • C) $5^2$
   • D) $4^3$
4. 4.

   What is the value of the expression $3^4 - (2^3 \times 5^1)$?

   • A) 24
   • B) 31
   • C) 41
   • D) 51

Answers and step-by-step solutions appear after you finish the test.