Can someone explain how the imperfect is used to talk about the past?

Choose the correct answer. the phrase "por cierto" means: by certain for sure over there for now does anyone know the answer to this question?

Question 12 of 252 pointssteps for solving 6x- 18 = 54 are shown.explain how step 1 solve the equation.6x -18 = 546x -18 +18 = 54 +186x = 72original equationstep 1step 2step 36x 7266x = 12step 4.oa. adding 18 to both sides isolates the variable.des sb. subtracting 18 from both sides undoes the subtraction.oc. adding 18 to both sides isolates the variable term.od. subtracting 18 from both sides combines like terms.

Poesía en la cual el poeta expresa sus sentimientos de forma subjetiva, inspirándose en sus propias experiencias de vida a. la poesía épica b. la poesía dramática c. la poesía infantil d. la poesía lírica