True or false

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 when b ≠ 0, is always a rational number.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

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imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation: