Explain how an abacus works doing addition and subtraction arithmetic.
cylinders left to right, “100” then “20” then “5” then “1”. the “100” has a quantity of 5 tokens. the “20” has a quantity of 4 tokens. the “5” has a quantity of 3 tokens. the “1” has a quantity of 4 tokens.

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

What is the volume of a rectangular crate that has dimensions 9 inches by 9 inches by 1 feet? 1,458 in.3 121.5 in.3 1,012.5 in.3 36 in.3

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship