Determine whether each statement is true or false. {5, 7, 9, 19} ∩ {7, 9, 11, 15} = {7, 9}

Find each product or quotient where possible. 100/-25

Express the distance between the given numbers using absolute value. Then find the distance by evaluating the absolute value expression. −2 and 5

Simplify using properties of exponents. $\left(5x^{\frac{2}{3}}\right)\left(4x^{\frac{1}{4}}\right)$

Write each number in decimal notation without the use of exponents. $-8.17\times {10}^6$

Add or subtract as indicated. Write answers in lowest terms as needed. 7/12-1/9

Find each product or quotient where possible. 0/-8

Determine whether each statement is true or false. [6, 12, 14, 16} ∪ {6, 14, 19} = {6, 14}