Answer: $250
Explanation: 150 x 12 = 1,800 x 3 = 5,400 + 2,900 = 8,300
(Correct Answer) 250 x 12 = 3,000 x 3 = 9,000 + 2,900 = 11,900
350 x 12 = 4,200 x 3 = 12,600 + 2,900 = 15,900
450 x 12 = 5,400 x 3 = 16,200 + 2,900 = 19,100
As you see, 250 will be the best option.