1. Calculate the average variable rate for the following costs: food and wages, delivery costs, and other costs. If required, round your answers to two decimal places. Use your rounded answers in subsequent computations if necessary. 2. Form an equation for total cost based on the fixed costs and your results from Requirement 1. Enter the sales percent in decimal form, rounded to four decimal places. For example, 62.75% would be entered as 0.6275 . Total cost =$ + (sales) +$ (miles) +$ (product) 3. The president is considering expanding the restaurant menu and plans to add one new offering to the menu. According to the cost equation, what is the additional monthly cost for the new menu offering