20 mails in 1/4 day (0.25 day)
-> 1 day = 20/0.25 = 80 emails
Answer:
It's A.
Step-by-step explanation:
Expanded Notation Form:
40,000,000
+ 8,000,000
+ 0
Expanded Factors Form:
4 × 10,000,000
+ 8 × 1,000,000
+ 0 × 100,000
+ 0 × 10,000
+ 0 × 1,000
+ 0 × 100
+ 0 × 10
+ 0 × 1
