The answer is 18.
Here's how I got my answer:
Step 1: Subtract [tex] 7-4 [/tex] to get 3. Which will leave you with [tex] 2 * 3^4 /9 [/tex]
Step 2: Solve [tex] 3^4 [/tex](81). Which leaves you with [tex] 2 * 81/9 [/tex]
Step 3: Do [tex] 2 * 81/9 [/tex] to get [tex] 162/9 [/tex]
Step 4: Simplify [tex] 162/9 [/tex] to get your answer: 18
