Please help me with 2 through 6 asap

Fill in the blank with the correct form of preterite or imperfect of the verb in parentheses. nosotros to puerto rico. (vivir)

Which verb form best completes this sentence? pablo picasso el estilo de cubismo. a. invente b. inventaste c. inventó d. invento

Sandra is cooking her famous brownies for her class for her recipe she needs 5/7 of a cup of sugar and 1/8 as much salt as sugar how much salt does she need for recipes