Chapter 5, Problem 4MC

Consider the following information for a local concession stand’s first four weeks of operation:

Using the high-low method, what is the equation for total operating cost for this concession stand?
$\begin{array}{l}\text{a}\text{. Total Cost = \$1,750 + (\$0}\text{.75 }\times \text{ Number of drinks served)}\text{.}\\ \text{b}\text{. Total Cost = \$1,000 + (\$1}\text{.75 }\times \text{ Number of drinks served)}\text{.}\\ \text{c}\text{. Total Cost = \$1,940 + (\$0}\text{.56 }\times \text{ Number of drinks served)}\text{.}\\ \text{d}\text{. Total Cost = \$1,750 + (\$0}\text{.56 }\times \text{ Number of drinks served)}\text{.}\end{array}$