CAN SOMEONE HELP ME ON ALL AND THOSE ANSWERS ARE ANSWERS FOR THESE PROBLEMS PLS HELP ME I WILL GIVE BRAINLIST ):

How much orange juice do you need to make 2 servings of lemony orange slush?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?