Algebra-1

To determine the minimum number of questions Lily needs to answer correctly, we can set up the inequality.

 

Let x represent the number of questions Lily answers correctly.

 

The total number of questions is 20, so the number of incorrect or unanswered questions would be 20 - x.

 

The total score can be calculated as:

Total score=10x - 5(20 - x)

 

Lily wants to score at least 80 points, so we set up the inequality:

10x - 5(

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