My guess would be less than $25
Answer:
$3.85? 12/3.12 = $3.85
The answer would have came out of 3.84615384615
Then round up the answer to 3.85. So the unit price is $3.85.
14+5(x+3)-7
14+(5x+15)-7
7+5x+15
5x+22
The answer is 4/17 or 0.235
The answer is 1945 to 1989