Determine whether each statement is true or false. {3, 5, 9, 10} ∪ ∅ = {3, 5, 9, 10}

State the name of the property illustrated. 6+(−4)=(−4)+6

Determine whether each statement is true or false. {3, 5, 9, 10} ∩ ∅ = {3, 5, 9, 10}

Add or subtract as indicated. Write answers in lowest terms as needed. $8\frac{2}{9}-4\frac{2}{3}$

Find each product or quotient where possible. -10/17 ÷ (-12/5)

Add or subtract as indicated. Write answers in lowest terms as needed. $7\frac{5}{12}-4\frac{5}{6}$

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

Determine whether each statement is true or false. {1, 2, 4} ∪ {1, 2, 4} = {1, 2, 4}

State the name of the property illustrated. 6+(2+7)=(6+2)+7