Use an F function in cell E $18$ to calculate the price to charge per donut for order one a customer is charged $$\mathrm{.}50$ per donut unless they buy a dozen or more in this case they are charged $$\mathrm{.}40$ a doughnut referred to the appropriate price and sells C $11$ and C $12$ for your value if true and value if false arguments use absolute and relative references when appropriate