2x2 is 4 and 4x2 is 8 therefore 2 is a factor of 8 and 4
If you use PEMDAS: Parentheses, Exponents, Multiply, Divide, Add, Subtract for order of operations your answer will be 277
9x27+2x31-28
243+62-28
305-28=277
1/2(3g-2)=g/2
(3g-2)/2=g/2
2(3g-2)=2g (cross multiplication)
6g-4=2g
6g-2g=4
4g=4
g=4/4
g=1
12 L = 12.6803 Qt i believe