a$.$ What was the settle price for May $2019$ Milk futures on this date? What is the total dollar value of this contract at the close of trading for the day? $($Input all amounts as positive values. Enter the settle price in dollars rounded to $4$ decimal places and round the dollar value to $2$ decimal places.$)$ b$.$ What was the settle price for April $2019$ platinum futures on this date? If you held $110$ contracts, what is the total dollar value of your futures position? $($Input all amounts as positive values. Enter the settle price in dollars rounded to $4$ decimal places and round the dollar value to the nearest whole number.$)$ c$-1.$ Suppose you held an open position of $50$ September $2019$ mini S&P $500$ futures on this day. What is the change in the total dollar value of your position for this days trading? $($A negative value should be indicated by a minus sign.$)$