After reading 80% of her e-mails in her inbox, danette still has m unread emails. which of the following expressions could represent the number of e-mails danette had in her inbox before she started reading?

m/(1 - .8)

Step-by-step explanation:

She read 80% of her emails, which is .8 of the total.  So her unread emails would be 100% - 80% = 1 - .8

that means me can be written as:

m = (1 - .8)t

where t is the total

If we solve for t, we get:

t = m/(1 - .8)

g

step-by-step explanation: