0. Review of Algebra

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

Write each number in scientific notation. −0.00000000405

Determine whether each statement is true or false. |8-12| = |8| - |12|

Determine whether each statement in is true or false. 0 ≥ -6

In Exercises 77–86, write each number in scientific notation. 64,000

Let U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, M = {0, 2, 4, 6, 8}, N = {1, 3, 5, 7, 9, 11, 13}, Q = {0, 2, 4, 6, 8, 10, 12}, and R = {0, 1, 2, 3, 4}.Use these sets to find each of the following. Identify any disjoint sets. {x | x ∈ U, x ∉ M}

Add or subtract as indicated. 345.1 - 56.31

Write each decimal as a percent. 0.004