After reading 80\%80%80, percent of her e-mails in her inbox, danette still has mmm unread e-mails.

The required expression is or

Step-by-step explanation:

Consider provided information.

After reading 80% of her emails in her inbox, Danette still has M unread emails

Now we need to determine the expression, that could represents the number of emails Danette had in her inbox before started reading.

Let x be the number of emails before reading.

She reads 80% of x

80% can be written as 0.08.

Therefore,  is the number of mails she read.

Thus, the unread e-mails are

Now we factor out x

Hence, the required expression is or

f

step-by-step explanation:

f