Add or subtract as indicated. Write answers in lowest terms as needed. 13/15 - 3/15

Find each product or quotient where possible. -14/2

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

Insert ⊆ or s in each blank to make the resulting statement true. {5, 6, 7, 8} ____ {1, 2, 3, 4, 5, 6, 7}

Find each product or quotient where possible. -24/-4

Express the distance between the given numbers using absolute value. Then find the distance by evaluating the absolute value expression. 2 and 17

Insert ⊆ or ⊈ in each blank to make the resulting statement true. ∅ ____ {1, 4, 6, 8}