Use absolute value to express the distance between −13 and 17 on the number line. a. |−13 − 17| = −30 b. |−13 − 17| = 30 c. |−13 − 17| = −4 d. |−13 − 17| = 4

Multiplying an even number of negative numbers gives an answer that is choose from:

X+ y = 5 ; x - y =3 solve using linear combination

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.