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)

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

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

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

Insert ∈ or ∉ in each blank to make the resulting statement true. 0 _____ {0, 5, 6, 7, 8, 10}

Multiply or divide as indicated. Write answers in lowest terms as needed. (21/8)∙(4/7)