4 quizzes per 2 weeks = 2 quizzes per week
Leah took a total of 4 quizzes , so she only needs to take two more quizzes . that means she will have to attend one more week since 2 quizzes are given each week.
Answer:
Leah must attend 3 weeks of school this quarter for her to take a total of 6 quizzes.