28 might be a parallelogram
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<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>
Steps to solve:
g(x) = – x^2 + 4x + 3 when g(-3).
~Substitute x with -3.
g(-3) = -(-3)^2 + 4(-3) + 3
~Simplify
g(-3) = -9 - 12 + 3
~Simplify using PEMDAS
g(-3) = -18
Best of Luck!
Supplementary angles because because angle 1 + angle 2 = 180° so they form a line