The correct conjugation of "seguir" in this case is:
D. Sigues
Tú - You
Sigues - Follow (second person, singular, present)
Hope it helped,
BioTeacher101
the answer is A. Imperfecto progresivo.
The progressive imperfect is used to express something that was taking place in the past. It is formed using the verb to be in past (in this case: estaba) plus the verb ending in ing (ando, endo, in this case: cantando). It is mainly used for: on-going actions that were happening in the past.
A) la potencia P=IV (corriente por voltaje)
P=15A * 110v
P=1650 W (dejemoslo en watts pensando que es de corriente directa)
b)durante 8 horas gastaste (8h)*(1650W) = 13.2KWh
y debido a que el costo de consumo es 10 centavos por cada KWh
gastaste 132 centavos