The author of "String Theory" believes that the quipu was used as a calculator by the Incas. Which important detail supports that summary? A.

Most of us do not do math without a calculator.

B.

The knots in the dangling strings represented numbers.

C.

Quipus are made of cotton and wool strings.

D.

The quipu knots represent letters.

Pls needs hypehen or no hyphen 1. after serving as principal for ten years, mr. jones will resign this year 2. it's sixty seven degrees outside and it's only february!

What do critics say about art happenings and flash mobs

The institute of international research is holding its annual convention. this year more than 500 scholars have been invited to hear research reports on many timely topics. approximately 250 big name scientists will be winging their way to washington, d. c. how can the underlined sentence be revised so that it fits the tone of the passage? a) approximately 250 people will be in washington, d. c. b) approximately 250 bigwigs will be flying to washington, d. c. c) approximately 250 science people will be going to washington, d. c. d) approximately 250 well-known scientists will be arriving in washington, d. c.