37 1/2. Since the decimal is in the tens place, the best, and easiest, denominator to use is 10, which results in 37 5/10 which then can be simplified into 37 1/2
Let's move the terms with n to one side: 12n < 3n + 28 => 12n - 3n < 28 9n < 28 => n < 28/9 n < 3.1111 The only answer which satisfies this inequality is A.
