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

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

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

Evaluate each expression 27^(-4/3)

Insert ⊆ or ⊈ in each blank to make the resulting statement true. ∅ ____ ∅

Add or subtract as indicated. Write answers in lowest terms as needed. 7/12 - 1/3

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