Answer:
<u>The correct calculation is D. 7,040 × 3, then 21,120 ÷ 8 </u>
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Number of downloads from girls = 7,040
Number of downloads from boys = 3 times as many
Number of boys who downloaded and paid the full version = 1 out of 8
2. Which calculation yields the number of boys who bought the full version of the app?
Number of downloads from boys = 3 * 7,040
Number of downloads from boys = 21,120
Number of boys who downloaded and paid the full version = 21,120/8 = 2,640
<u>The correct calculation is D. 7,040 × 3, then 21,120 ÷ 8 </u>
