An item has a listed price of $70 . If the sales tax rate is 5% , how much is the sales tax (in dollars)?
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Check the picture below.
notice that 146° is sitting on a flat-line, and thus it has a sibling linear angle, namely 34°.
now, recalling that a triangle has a sum of 180° for all interior angles, the missing one is 126°, and incidentally that is a corresponding angle with "c".
F(x)=x^2-4x+7
My work is attached below
My work is attached below