What is the value of 4 in 2,483,175?
2 answers:
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So the number of pencils bought can be represented by an equation: 
, where n is the number of notebooks bought. Since Helen bought 5 notebooks, simply plug 5 into n: 
. So Helen bought 12 pencils.
The norm of a vector is equal to the square root of the inner product of
with itself.
a.
b.