Tenemos precio de lista de $25 para el libro.
Si aplicamos un descuento del 25%, este descuento representa:

Ahorramos $6.25.
El precio que pagamos el libro es $18.75.
T represents hours, so if c(1.5)=c(t) as it mentioned in the problem, then 1.5 equals hours, and c represents cost, so if cost + time equals nine then I think it's a
Answer:
The third one, x+(x+1)+(x+2)=-21 because x, x+1 and x+2 are three consecutive numbers.
The number that represents what she got correct is 0.95, because 100-5=95, and because that the number will be 0.95, if she had gotten all correct the number would have been a full 1
Okiiiiiiiiiiiiiiiiiiiiiii Y+5=2 (x-3)