Ihave to solve this question! 15 points here is a test for all of you a> if items a + b = $ 25 b> and items b + a + c = $46 c> and items b + b + b = $30 d> and item a = $ 15 what is item c ? find the answer by using only two of the lettered lines. ex: " you can find the answer by using lines a> and b> and doing this with them." said the unknown sranger typing an answer.

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?

Perform the indicated operation. y^2 + 3y - 10 / 3y + 15

What is the measure of angle a and angle c ?