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In a school the duration of a period in primary is 40 minutes , middle section is 50 minutes and higher section is 60 minutes . If the first bell rings at 7:30 am when will the 3 bells ring together again ?
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Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10
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Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52
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