An Income Statement for Sam's Bookstore for the First Quarter

Multiple Choice

An income statement for Sam's Bookstore for the first quarter of the year is presented below:
On average, a book sells for $50. Variable selling expenses are $5 per book with the remaining selling expenses being fixed. The variable administrative expenses are 4% of sales with the remainder being fixed.
-The cost formula for selling and administrative expenses with "X" equal to the number of books sold is:

A) Y = $102,000 + $5X
B) Y = $102,000 + $7X
C) Y = $78,000 + $7X
D) Y = $78,000 + $9X