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hello can u help me with this? 2. The mean age of 10 full time guidance counselors is 35 years old. Two new full time

hello can u help me with this?

2. The mean age of 10 full time guidance counselors is 35 years old. Two new full time guidance counselors, aged 28 and 30, are hired. Five years from now, what would be the average age of these twelve guidance counselors

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