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2. Convert the pseudocode routine Z0; while (X 6) do (z ? z + x; to an equivalent routine using a repeat statement. 3. Some of the popular programming languages today use the syntax while (.) do( to represent a pretest loop and the syntax do (.) while (.) to represent a posttest loop. Although elegant in design, what problems could result from such similarities? 4. Suppose the insertion sort as presented in Figure 11 was applied to the list Gene, Cheryl, Alice, and Brenda. Describe the organization of the list at the end of each execution of the body of the outer while structure. 5. Why would we not want to change the phrase "greater than" in the while statement in Figure 11 to "greater than or equal to