Maile’s Flower Shop gets a rose delivery once per week for which they pay 33 cents per rose. Roses are sold for $1.52 per bud. At the end of the week, Maile sells all remaining roses to a potpouri maker for 11 cents apiece. Sales are normally distributed with a mean of 1,074 roses per week and a standard deviation of 276. How many roses should Maile purchase?