An angle measures 128.6 more than the measure of its supplementary angle what is the measure of each angle

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges