Use SSS to explain why ABC = CDA are congruent Will mark Brianliest

ABC=CDA because AB is congruent to CD and AC=AC and DA=AB

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Amanda needs a grade of at least 83 2/3 on her final exam

Amanda's grade (g) is calculated from her homework grade (h), quiz grade (q), project grade (p), test grade (t), and final grade (f) using the formula ...

... g = 0.10h +0.15q +0.20p +0.40t +0.15f

Amanda wants g ≥ 80.

Filling in the values, we have ...

... 0.10·90 +0.15·75 +0.20·76 +0.40·80 +0.15·f ≥ 80

... 9 + 11.25 + 15.20 + 32 + 0.15f ≥ 80 . . . . . simplify a bit

... 0.15f ≥ 80 -67.45 . . . . . . . . . . . . . . . . . . . . subtract 67.45

... f ≥ 12.55/0.15 . . . . . . . . . . . . . . . . . . . . . . . divide by the coefficient of f

... f ≥ 83 2/3