Answer:
a. 2800 MNT
b. 4800 MNT
c. 20000 MNT
Explanation:
We know
21 football stickers = 8400 MNT
1 football sticker = 400 MNT
a.
7 pieces = 400 x 7 = 2800 MNT
b.
12 pieces = 400 x 12 = 4800 MNT
c.
50 stickers = 400 x 50 = 20000 MNT
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