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Which number is irrational? a) 16 b) 18 c) 25 d) 36

Which equation represents the partial sum of the geometric series?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?