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He ripped a piece of paper into three parts, and tore each of those parts into three more parts. if he repeated this action 12 times, how many pieces of paper would he have?

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3^12

i think that the answer is 3^12=531441

i need help with dividing negative numbers. for example :what is -2/-4.

a + 6a = 7a
7a - 9 = 30
7a=30-9
7a=21
isolate the a by dividing by 7
a=3

2*2

i think it is 3*12

When the expression 3 to the 444 power + 4 to the 333 power is written as an integer, what is the unit digit?

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