Shall the limitation on the amount of taxes which may be assessed against all property in Whitmore Lake Public School District, Washtenaw and Livingston Counties, Michigan, be increased by and the board of education be authorized to levy not to exceed 1 mill ($1.00 on each $1,000 of taxable valuation) for a period of 3 years, 2016, 2017 and 2018, to create a sinking fund for the purchase of real estate for sites for, and 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 2016 is approximately $335,428?