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Answers by David W.

A Grace Hopper nanosecond is a visual aid that represents how fast electricity can travel in one billionth of a second.   The name comes from the foot-long lengths of telephone wire that Admiral Grace Hopper used to give out at lectures. Admiral Hopper used the wires to illustrate how...

This is a geometric sequence -- there is a constant ratio of a term with the previous term.     110/100 = 1.1   121/110 = 1.1   133.1/121 = 1.1   The next term is x:     x/133.1 = 1.1   Can you find x ?

"Computational thinking is the thought processes involved in formulating a problem and expressing its solution(s) in such a way that a computer—human or machine—can effectively carry out. Computational Thinking is an iterative process based on three stages:      Problem...

Average = (total of the values) / (number of values)   Add the number of books and divide by the number of libraries.      [give answer in millions]

"Unit rate" is "how many of these for one of those?"   Considering "18 cupcakes made in 3 hours," you may have:              6 cupcakes per hour                     ...

The Standard Form of the equation of a line looks like:    Ax+By=C     You may, once and forever, convert this to slope-intercept form (y=mx+b) and remember that the slope, m=(-A/B).   A line with slope of (-2) will have an equation that looks like:   ...