(puc-sp) Certa mercadoria que custava r$ 12,50 teve um aumento, passando a custar r$14,50.A taxa de reajuste sobre o preço antig
2 answers:
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Answer:
A = -12
B = -8
C = -4
Step-by-step explanation:
x = -2
A = -12
x = 0
B = -8
x = 2
C = -4
Hope this helps