Evaluate each exponential expression in Exercises 1–22. −2⁶

Evaluate each exponential expression in Exercises 1–22. (−3)⁰

Evaluate each exponential expression in Exercises 1–22. 4⁻³

Evaluate each exponential expression in Exercises 1–22. $2^2\cdot 2^3$

Evaluate each exponential expression in Exercises 1–22. $(3^3{)}^2$

Evaluate each exponential expression in Exercises 1–22. $3^8/3^4$

Evaluate each exponential expression in Exercises 1–22. $2^3/2^7$

Simplify each exponential expression in Exercises 23–64. x⁻²y

Simplify each exponential expression in Exercises 23–64. $x^0{y}^5$

Simplify each exponential expression in Exercises 23–64. $x^{-5}\cdot x^{10}$

Simplify each exponential expression in Exercises 23–64. $x^{14}/x^7$

Add or subtract terms whenever possible. $4\sqrt{13x} - 6\sqrt{13x}$

Simplify each exponential expression in Exercises 23–64. $\frac{x^{30}}{x^{-10}}$

Simplify each exponential expression in Exercises 23–64. $(-4/x{)}^3$

Simplify each exponential expression in Exercises 23–64. $(-3x^2{y}^5{)}^2$

Simplify each exponential expression in Exercises 23–64. $\frac{25a^{13}{b}^4}{-5a^2{b}^3}$

Simplify each exponential expression in Exercises 23–64. $\frac{10x^4 y^9}{30x^{12} y^{-3}}$

Simplify each exponential expression in Exercises 23–64. ${\left(\frac{3x^4}{y}\right)}^{-3}$

Write each number in decimal notation without the use of exponents. $9.2\times {10}^2$

Write each number in decimal notation without the use of exponents. $-7.00001\times {10}^{10}$

Write each number in scientific notation. 579,000,000,000,000,000

Write each number in scientific notation. −3829

Write each number in scientific notation. 0.0083

Write each number in scientific notation. −0.00000000405

Perform the indicated computations. Write the answers in scientific notation. If necessary, round the decimal factor in your scientific notation answer to two decimal places. $(6.1\times {10}^{-8})(2\times {10}^{-4})$

Perform the indicated computations. Write the answers in scientific notation. If necessary, round the decimal factor in your scientific notation answer to two decimal places. $(4.3\times {10}^8)(6.2\times {10}^4)$

Perform the indicated computations. Write the answers in scientific notation. If necessary, round the decimal factor in your scientific notation answer to two decimal places. $(8.4\times {10}^8)/(4\times {10}^5)$

Perform the indicated computations. Write the answers in scientific notation. If necessary, round the decimal factor in your scientific notation answer to two decimal places. 282,000,000,000/0.00141

Perform the indicated computations. Write the answers in scientific notation. If necessary, round the decimal factor in your scientific notation answer to two decimal places. (66,000×0.001)/(0.003×0.002)

Simplify each exponential expression. Assume that variables represent nonzero real numbers. $\frac{(x^{-2} y)^{-3}}{(x^{2} y^{-1})^{3}}$