What is -4/-2 simplified. Is it -2, or just 2?

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?

Will give a: 122 b: 90 c: 48 d: 180

The graph of the function f(x) = (x + 2)(x + 6) is shown below. which statement about the function is true? the function is positive for all real values of x where x > –4. the function is negative for all real values of x where –6 < x < –2. the function is positive for all real values of x where x < –6 or x > –3. the function is negative for all real values of x where x < –2.