0. Review of Algebra

Write each number in decimal notation: 7.45*10^(-5)

Find the union of the sets. {e,m,p,t,y} ∪ ∅

Write each number in scientific notation. 3,590,000

List all numbers from the given set that are a. natural numbers, b. whole numbers, c. integers, d. rational numbers, e. irrational numbers, f. real numbers. {-9, -4/5, 0, 0.25, √3, 9.2, √100}

Insert ∈ or ∉ in each blank to make the resulting statement true. {0} _____ {0, 1, 2, 5}

Multiply or divide as indicated. Write answers in lowest terms as needed. $3\frac{1}{4}\cdot 1\frac{2}{3}$

Multiply or divide as indicated. Write answers in lowest terms as needed. $2\frac{2}{3}\cdot 1\frac{3}{5}$

Insert ∈ or ∉ in each blank to make the resulting statement true. {2} ____ {2, 4, 6, 8}

Perform the indicated operation and write the answer in decimal notation.$(3\times {10}^3)(1.3\times {10}^2)$

Insert ∈ or ∉ in each blank to make the resulting statement true. . 0 ____ ∅

Find each sum or difference. 4 - 9

List all numbers from the given set that are a. natural numbers, b. whole numbers, c. integers, d. rational numbers, e. irrational numbers, f. real numbers. {-11, -5/6, 0, 0.75, √5, π, √64}