Given a $5$ dement array, say $\{z_1,x_2,x_3,z_4,z_5\},$ bow many comparisoas do you noed

to sort the array by the insertion sort for the best case?

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Gives a $5$lelement array, say $\{r_1,x_2,x_2,x_4,x_5\},$ bow many comparisons do you noed

to solt the array by the insertion sort for the worat case?

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Given a $7-$elcment array, say $\{x_1,x_2,x_3,x_4,x_5,x_6,x_7\},$ how mary comparisots do

yoes nevd to scit the array$-$ by the mergesont for the best rase?

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