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Verified Answer :

Quincy
says that 3 is a good estimate for 3.4 X 0.09, is she correct? Why?

When we say estimates meaning it is not the exact answer but close to what is
the exact.

Now, if Quincy estimated 3 as the product of 3.4 * .09, then let’s check if she
has the correct estimates.

=> 3.4 estimates is 3

=> 0.09 estimates is 0.1

Now the answer is 0.3 and not 3.

Thus, Quincy’s estimate is wrong.