BOSTON (AP) -- Supporters of ballot questions that would raise the minimum wage, create a statewide earned sick time policy and update the state's bottle deposit law say they've delivered more than enough certified signatures to put the issues before voters next year.

The labor-backed Raise Up Massachusetts Coalition held a rally in front of the Statehouse before dropping off what they said were a quarter of a million certified signatures at Secretary of State William Galvin's office.

If the signatures are approved, voters statewide could vote next year on whether to raise the minimum wage to $11 by 2016, as was approved by the state Senate last month.

Another ballot question would expand the types of bottles covered by Massachusetts' 1982 bottle deposit law.

Other proposed questions would repeal the state's 2011 casino law and undo a new law linking future hikes in the gas tax to inflation.