Select the correct combination of mathematical signs that can sequentially replace the $ signs and make the equation correct.
252 $ 28 $ 17 $ 8 $ 24 $ 121
252 ÷ 28 + 17 x 8 – 24 = 121 9 + 17 x 8 - 24 = 121 9 + 136 – 24 = 121. 121 = 121
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