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)

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.