as of September 2006,the U. S Census Bureau estimated the world population to be 6,544,111,964 people .which of the following expresses this number rounded to the nearest 10million and written in standard. HELP

Find the length of cu, the triangles are similar.

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12