I write wrong question

What is the discriminat of 3x^2+6x=2

Question 6 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. yo pago answer for blank 1: question 7 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. yo mando answer for blank 1: question 8 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. miguel y ana llegan answer for blank 1: question 9 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. ustedes lavan answer for blank 1: question 10 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. tú lavas answer for blank 1:

12. choose the answer that best completes the sentence. maria y (trabajar) en un restaurante. (2 points) a: trabajas b: trabaja c: trabajamos d: trabajan