Cristina keeps track of how many items are sold each week so she can figure
out how much she needs to bake for the next week. Pretzel rolls are her best-
selling bread. Here are the weekly sales of pretzel rolls in March.
Week
Number of Pretzel Rolls Sold
March 1-7
287
March 8-14 304
March 15-21271
March 22-28 316
Rounding to the nearest 10, what is the best estimate of the number of
pretzel rolls sold in March? Enter your answer in the box.