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Q31: Find and correct the error in the
Q31: Find the number of permutations of the
Q38: Find A<sup>2</sup> if A={1,
Q40: Find 18 mod 7.
Q50: Prove that <span class="ql-formula" data-value="5
Q69: What does a 60-second stop watch read
Q80: Show that the hypotheses "I left my
Q81: Suppose you have 100 identical marbles and
Q118: <span class="ql-formula" data-value="a _ { n }
Q145: <span class="ql-formula" data-value="( 202 ) _ {