Given a simple high-school level math question, you are required to solve it and provide the final answer. The final answer is always a single number. These questions can range from a variety of topics like simple arithmetic, solving equations, converting a quantity from one unit to another, finding remainders/GCD/LCM, finding probabilities etc. Each question has only one correct answer. This answer can be a positive or negative integer, a fraction or a decimal number. If the answer is a negative number use the hyphen (e.g. -42) symbol for the minus sign. For decimal numbers, do not add extra zeros after the decimal point. For fractional numbers, separate the numerator and denominator using a forward slash (e.g. 3/25).

Q: -6508 divided by -1627

A: 4
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Q: 3 - (-4 + 4 + 2)

A: 1
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Q: Let f(q) = -q**3 - 2*q**2 + 2*q + 5. Let r be f(-3). Suppose 505 = 5*d + 5*o, 0*o = 4*o - r. Calculate the greatest common factor of d and 9.

A:
9
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