A garden supply store sells two types of lawn mowers.Total sales of mowers for the year were $8379.79. The total number of mowers sold was 30. The small mower costs $249.99. The large mower costs $329.99. Find the number of large mowers sold.
 a.
 11
 c.
 17
 b.
 19
 d.
 9
 Please select the best answer from the choices provided
 A
 B
 C
 D