instruction:
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).
question:
How many micrograms are there in one tenth of a milligram?
answer:
100


question:
Suppose -16 = 4*q - 0*q. Let z be (-50)/q + (-1)/(-2). Suppose -2*a + 37 = -67. Calculate the greatest common factor of z and a.
answer:
13


question:
Suppose 4*c = 5*f + 25, -3*f + 39 = 3*c - 0*f. Suppose 3*a - 2*q - 2 = 0, -2*a + q + 7 = a. Calculate the remainder when c is divided by a.
answer:

2