Plz answer both questions 15 points

a: when multiplying or dividing rational numbers, when will the answer be positive?

b: when multiplying or dividing rational numbers, when will the answer be negative?

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

What is the result of adding the system of equations? 2x+y=4 3x-y=6