Answer:
45
Step-by-step explanation:
To find the number you just add 6 to 39 which gets you 45.
Answer: 35.52
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1) 2a = 9b ⇒ 2:9
2) a + b = 3b ⇒ a = 2b ⇒ 1:2
Answers: 2:9 and 1:2