Respuesta :
The equation to determine the number of baseball cards in Shaun's collection is b = (25 - 4) × 9
Number of pages in the album = 25 pages
Number of empty pages = 4
Number of full pages = 25 pages - 4 pages = 21 pages.
Number of cards that each page can hold = 9 cards.
Therefore, the equation to determine the number of baseball cards in Shaun's collection will be:
b = (25 - 4) × 9
b = 21 × 9
b = 189 cards.
There are 189 cards in the collection.
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