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).
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Question: Four letters picked without replacement from qfqyqqcyiicqf. What is prob of sequence icyf?

Answer: 2/2145


Question: Total of 5 and 0.10827.

Answer: 5.10827


Question: Let a(s) = -s**3 - 15*s**2 - 15*s - 14. Let d be a(-14). Solve 5*i + 5*f - f + 17 = d, 3*i = -5*f - 18 for i.

Answer:
-1