well, I can't say if it's expensive or not, since I've never lived in any other place. however, São Paulo - the city where I've always lived in - is said to be one of the most expensive places to eat. I usually spend about 15 reais (between 9/10 dolars) in my lunch if I go to a cheap restaurant. a Coca Cola costs about 1,80 reais (about 1 dolar) if you buy it in a supermarket. in a regular place, like a restaurant or a pub, it would cost about 2/3 reais (about 1,5 dolars). in São Paulo you'd probably eat a Big mac, with french friens and a medium Coke for 16 reais (10 dolars). you can also eat some good pizza in a restaurant for about 30 reais (about 19 dolars). is that expensive for you?