If 8 $ 3 = 32 and 6 $ 4 = 30, then 5 $ 4 = ?

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Accepted Answer

1. From the first: $8\$3=32$ and $8	imes3+8=24+8=32$. 
2. From the second: $6\$4=30$ and $6	imes4+6=24+6=30$. 
3. So the rule is $a\$b = a	imes b + a = a(b+1)$. 
4. Thus $5\$4 = 5	imes4 +5 = 20+5 = 25$.

FINAL_ANSWER: d

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Answer

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