PHOENIX -- The fate of a voter-approve tax on the rich to fund education could depend on whether a judge believes the money raised will be “grants’’ to school districts. Attorney Andy Gaona representing Invest in Ed told Maricopa County Superior Court Judge John Hannah on Wednesday that’s how he should read the language in Proposition 208. He said the initiative spells out in detail how the money raised will go out in “grants to school districts and charter schools.’’ But Dominic Draye, representing Republican lawmakers and business interests trying to quash the levy, urged the judge to reject that interpretation.