The answer is 2/5.
The answer is 20.
The answer is -10/3.
The answer is (2 + 1/2)/2 = 5/4.
The possible values of k are 5/2 and -7/3.
The answer is 15/4.
The answer is 3/2.
The answer is 3x^2.
The answer is 25/3.
