I am trying to change a program from an IF loop to a WHILE loop. The program started in Ch.05. It was modified in Ch.06 to an IF loop & now must be changed to a WHILE. I got it down to 2 errors and am totally lost. Maybe a fresh set of eyes can point me in the right direction? I've attached all 3 so you may see the progression. Any assistance is greatly appreciated.

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I'm trying long distance learning & I'm having many issues. I was able to write a program that runs well using an IF loop. but now I am to use that same exact program with a WHILE loop & I just can't understand any explanation I receive from the instructor. I asked "The directions say to use "sentinel method". I went through Ch.05-07 and cannot find this term. I also looked in the index & key terms for these chapters. Please direct me to where I can find an explanation of this method. -Response: It's in the repetition powerpoint attached …

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The End.