Answer:
Ask= Number of cards Peter have left
Operation= No. of Peter's cards - No. of his best friend's card = 21 - (1/3 x 21) = 21-7 = 14
Answer= Peter has 14 baseball cards left.
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Answer:
Ask= Number of cards Peter have left
Operation= No. of Peter's cards - No. of his best friend's card
= 21 - (1/3 x 21)
= 21-7
= 14
Answer= Peter has 14 baseball cards left.