Wolphram Alpha gives an answer, sure, but if you're teaching math at a higher level, and only marking based on the answer, you shouldnt be teaching. The majority of the marks should be given for the working and the minority for the correct answer.

This happens universally wherever you have small towns in the country. This happens notoriously in country Australia as well. The only place I've been where it doesn't is England, but they give you about a mile warning to slow down, and their speed cameras are in bright yellow boxes, also signposted.

How'd this idiot get elected? Who was stupid enough to vote family first?
Can someone PLEASE call the governor general and get this IDIOT out of office.