Excel Practice: Greer Golf Supplies is an online company that supplies practice and competition golf balls. The golf balls are packaged in three-golf-ball plastic sleeves. Practice balls cost $4 a sleeve, while competition balls cost $12 a sleeve. The golf balls are purchased directly from the manufacturer by owner Carl Rider, who pays $1 per sleeve for practice balls and $4 per sleeve for championship balls. Carl's salary, website hosting, and accounting and legal bills total $14,000 a month in fixed costs. Carl estimated that he would sell twice as many sleeves of practice balls as competition balls while developing his sales prediction for the year. Answer the following in Microsoft Excel: a. Find the total sales for each golf ball type. b. Prepare a year-end Greer's contribution format income statement based on existing sales data. Assume that all expenses and pricing were as expected. c. Create a monthly sales report and accompanying graphic that shows monthly sales revenues for each ball type