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## Answers by Dr Walli C.

Hi Rita, As a Bubbe (grandmother) myself I'd answer it this way:   "Do you remember last year when it was almost your ___th birthday?  One month or so before the big day we started saying that you were almost __(the next age). We estimated and to do this we rounded the number...

This is a distribution problem.  Think of the 7 as something that will effect both things inside the parentheses.  7 (b + 3) = 7 times b plus 7 times 3    or     7b+21 Distribution can also happen when the parentheses come first; as in (3 - x) 4 = 12- 4x And...

Lines can be defined in three ways: 1) the standard form Ax + By = C 2) the slope-intercept form Y = mX + b where m is the slope of the line and b is the Y intercept 3) the point slope formula with uses a point and the slope of the line in the form Y-Y1 = m (X-X1) The point...

Many standardized tests, including the SAT, ACT, GRE and GMAT do allow the use of a calculator, and I believe the ASVAB should too. I posed this argument to the Department of Defense in October of 2011 and an aide to the Undersecretary of the US Navy wrote back stating that it was under consideration...