Sydney subscribes to an e-book service. Her subscription costs a flat fee of $20 for up to 10 e-book downloads each month. For each download over 10 ,there is an additional charge per download. During the month of September ,Sydney downloaded 20 e-books and was charged $90. How much does each additional download cost?

$7.00

Step-by-step explanation: It says it costs $20 for up to 10 e-books downloads each month. And she downloaded 20 e-books and was charged $90. This means you need to do $90 - $20= $70. But, it wants to know the Cost of each additional download. So you would do 70 divided by 10, which equals 7.

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.