Answer :
[tex] \frac{[120 + ( \frac{12.30}{3} )]}{20} +102 ==> \\ \\
\\ \frac{120+(120)}{20} +102==> \\ \\ \frac{240}{20} +102=12+102==> \\ \\ 114 \\ \\ \framebox[1.1\width]{Good Luck !} \par
[/tex]
You would take 12 divided by 3 to get 4. Take 4 times 30 to get 120. 120+120 is 240. 240 divided by 20 is 12. 12+102 is 114. 114 is your answer