Answer:subtraction property of equality
Step-by-step explanation:
1.<em> no solution</em>
2.<em> one solution</em>
3.<em> infinitely many solutions</em>
4. <em>infinitely many solutions</em>
5.<em> no solution</em>
6.<em> one solution</em>
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Answer:
Solve the problem by taking whats preformed on the variable, inverse it getting the variable by itself.
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.
