exam Maths Puzzle Numerical Ability

express using a positive exponent 1/h^-6

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exam Other Question

There are 210 students doing the morning exercise. Kinder, Grade Five, and grade six. There are 15 more grade five children than Kinder and 45 less grade six children than kinder. How many children from each grade are exercising? find two consecutive integers such that the sum of 7 times the first integer and 4 times the second integer is 37