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Rosa is 13 years and 6 months old and her brother Malcom is 11 and 6 months old. Their grandfather is 89 years old. How many years

By Ava

Rosa is 13 years and 6 months old and her brother Malcom is 11 and 6 months old. Their grandfather is 89 years old. How many years (y) older is the great grandfather than the combined ages of Rosa and Malcom?

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Ava

Two rectangles are said to be congruent if they have same length
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Three digit numbers are formed using the digits 0, 1, 3 that repetition of the digits is not allowed. Find the average of all such

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