True or false for each statement.

1.for a real number a, a + 0 = a.

2.for a real number a, a + (-a) = 1.

3.for a real numbers a and b, | a - b | = | b - a |.

4.for real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c).

5.for rational numbers a and b, is always a rational number.

i dont have an answer

step-by-step explanation:

ion

step-by-step explanation:

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example answer: "to determine if a sum is reasonable you can round each number to the nearest whole and compare the estimated sum to the actual sum."

hope this you and anyone else who needs the answer : ^)