Shall the limitation on the amount of taxes which may be assessed against all property in Wyoming Public Schools, Kent County, Michigan, be increased by and the board of education be authorized to levy not to exceed .50 mill ($0.50 on each $1,000 of taxable valuation) for a period of 10 years, 2012 to 2021, inclusive, to create a sinking fund for the construction or repair of school buildings and all other purposes authorized by law; the estimate of the revenue the school district will collect if the millage is approved and levied in 2012 is approximately $426,000?