Final answer:
Elaine needs 260 pinecones in total. The correct answer is B) 260.
Step-by-step explanation:
In this case, Elaine needs 13 pinecones for each wreath, and she is making 20 wreaths.
To find out how many pinecones Elaine needs in total, you can multiply the number of wreaths by the number of pinecones needed for each wreath:
Total pinecones = Number of wreaths×Pinecones per wreath
Total pinecones =20wreaths × 13pinecones per wreath
Total pinecones = 260
So, Elaine needs 260 pinecones in total.
Therefore, the correct answer is B) 260.