Help, I need the answer ASAP.

If g(x) is an odd function, which function must be an even function?

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.