Opponents of a proposed $240 million slots parlor have presented Worcester officials with nearly a dozen petitions demanding that no talks begin that would lead to an agreement with developers. The Telegram & Gazette reported that petitions want information about the effect of a slot machine gambling parlor on the poor, local schools, young people, and businesses. Petitions also seek information about how a parlor might worsen gambling addictions or lead to greater demand for social services. The city manager also is asked to prohibit or restrict to $10,000 what developer Massachusetts Gaming & Entertainment can spend on referendums for the project. The City Council could authorize the city manager on Tuesday to negotiate an agreement for a slots parlor.