How do u find the mean median mode and range?

43lbs of tomatos cost $387. how much would 41lbs cost

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount