3.Which number is a perfect square?
a.525
b.625
c.725
d.325
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4.Which number is a perfect square?
a.189
b.239
c.289
d.269
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5.The factor tree for 324 is shown below.
Which expression shows that 324 is a perfect square?
a.81x4
b.18x18
c.27x12
d.9x36
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6.The factor tree for 1225 is shown below.
Which expression shows that 1225 is a perfect square?
a.35x35
b.25x49
c.175x7
d.245x5
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7.The factor tree for 3136 is shown below.
Which expression shows that 3136 is a perfect square?
a.32x98
b.28x112
c.64x49
d.56x56
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