Marissa is trying to talk her parents into letting her have her own phone so she
won't lie up the family's phone all nighi
She claims that she makes 15 calls per
night at an average of 6 minutes per call.
One evening, her parents kept track of
each call Marissa made. The minutes
were 8. 4. 2.7.10 and 5. Was Morissa's
claim accurate?