Question: Solve this compound inequality 3r > 21 and 4r < 12. A. 3 < r < 7 B. r > 3 and r < 7

Solve this compound inequality 3r > 21 and 4r < 12. A. 3 < r < 7 B. r > 3 and r < 7 C. 7 < r < 3 D. r > 3 and r > 7 ____ 2.Supposeyvariesdirectlywithx.Ifxis6whenyis3,whatisxwhenyis5? A. B. 10 C. D. 10 ____ 3.Evaluatetheexpression10a+3b-5a+4b+1a+5b,fora=5,b=2. A. 6 B. 12 C. 36 D. 54

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