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).

Example Input: Let f(h) = h**2 - 5*h + 6. Let l be 6 - (-1 - (-5 - -2)). What is the units digit of f(l)?
Example Output: 2

Example Input: What is 85.89907t in micrograms?
Example Output: 85899070000000

Example Input: How many days are there in 26/7 of a week?
Example Output:
26