Insert ∈ or ∉ in each blank to make the resulting statement true. 13 _____ {3, 5, 12, 14}

Find each sum or difference. -15+6

Simplify each exponential expression: $(-5x^3{y}^2)(-2x^{-11}{y}^{-2})$

Multiply or divide as indicated. Write answers in lowest terms as needed. (1/8)∙(10/7)

Find the union of the sets. {1,3,5,7}∪{2,4,6,8,10}

Find each sum or difference. 13 + (-4)

Insert ∈ or ∉ in each blank to make the resulting statement true. 0 _____ {0, 2, 3, 4}