Answer:
Option A. We can expect 40 giant swallowtails.
Explanation:
Ellie observed that in her butterfly garden there are different types of butterflies as :
Monarchs = 34
Gulf fritillaries = 56
Giant Swallowtails = 8
Total = 34 + 56 + 8 = 98 butterflies
There are 8 Giant Swallowtails out of 98 so the percentage of them :
8 ÷ 98 × 100 = 8.163 %
Almost 8.163% butterflies are Giant swallowtails. If 480 butterflies visit her garden,
8.163% of 480 = 0.0816 × 480
= 39.168 rounded to 40
We can expect 40 giant swallowtails.