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27 March, 01:44

Answered 36 problems correctly. The grade was 45%. They would like to score a 75% on the next retake test. How many more problems do they need to answer correctly.

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  1. 27 March, 02:02
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    24

    Step-by-step explanation:

    0.45 = 36/x

    x = 80, where x is the total number of questions

    0.75 = z/80

    z = 60, where z is the number of correct answers

    60-36=24 more problems correct
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