Answer: 7/12 jar is full of marbles
Explanation:
Matt had full Jar of Marbles = 1
After giving 3/4 to Kayla , jar has marbles =
Kayla returned = 1/3 of Jar
Now jar has marbles = 1/3+ 1/4
= 4/12 + 3/12 [ making denominator same]
= 7/12
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