1) Jenna's Music Store buys premium keyboards for $500 and sells them for $700. She pays a sales commission of 5% of sales revenue to her sales staff. Jenna pays $2,000 a month rent for her store, and also pays $2,400 a month to her staff in addition to the commissions. Jenna sold 100 keyboards in June. If Jenna prepares a contribution margin income statement for the month of June, what would be her operating income? (6 points) It costs Homer's Manufacturing $0.75 to produce baseballs and Homer sells them for $4.00 a piece. Homer pays a sales commission of 5% of sales revenue to his sales staff. Homer also pays $12,000 a month's rent for his