nun-"ml RU) (dollars/den ) mm" a) Compute the lefthand Riemann sum for these data, using 11 = 5 rectangles. L5 = E (Enter a numeral) b) )Compute the right hand Riemann sum for these data using 11 5 rectangles. R5=|:| (Enter a numeral) c) Compute the middle Riemann sum for these data, using 11 = 5 rectangles. = E (Enter a numeral) d) What is the practical meaning of f030 R(t) dt? The total amount of money, in dollars, coming into the vending machine over the entire 30day period The amount of money, in dollars, coming into the vending machine on just the 30th day The average rate at which money comes into the vending machine, in dollars per day, over the entire 30day period