Aschool staff meeting had 80 teachers is attendance, 30 percent of whom were first year teachers. how many teachers at the meeting had taught for more than one year?

Since only 30% of the teachers taught for one year, the remaining percentage of the teachers had taught for more than a year, or 70%.
70%=0.7
80(0.7)=56
56 teachers had taught for more than a year.

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