For his long distance phone service, rafael pays a $6 monthly fee plus 8 cents per minute. last month, rafael’s long distance bill was $20.16. for how many minutes was rafael billed?

8.52 or 8 minutes and 52 seconds (i hope this is right)

Step-by-step explanation:

8(20.16) + 6 = m

2.52 + 6 = m

8.52 = m

(m is the amount of minutes)

you need to show us the graph.

step-by-step explanation:

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315