use an if function in cell e$18$ to calculate the price to charge per donut for order $1.$ A customer is charge $$0\mathrm{.}50$ per donut unless they buy a dozen or more. In this case, they're charged $$0\mathrm{.}40$ a donut. Refer to the appropriate price in cells C$11$ and C$12$ for your "value if true" and "value if false" arguments. Use absolute and relative references when appropriate