Select true or false to each statement for a real number a, a + 0 = a. for a real number a, a + (-a) = 1. for a real numbers a and b, | a - b | = | b - a |. for real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c). for rational numbers a and b when b ≠ 0, is always a rational number. which ones are true and false?

Is the figure congruent? yes or no?

Bring the fraction a/a-4 to a denominator of 16-a^2

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.