The selling price of an item is $650. it is marked down by 20% but this sale price is still marked up from the cost of 400 find the markup from cost to sale price

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =