6) Back in 2003, Ayanna's cell phone plan charged her $10 every month plus 10 cents per minute she talked on the phone. Her sister Clarissa's plan was a little
different. Clarissa's cell didn't have a monthly fee, but instead charged 15 cents
per minute she talked on the phone. At the end of their first month, Clarissa and
Ayanna got their cell phone bills. The got charged the exact same amount AND
they had used the same number of minutes. How many minutes did they each
spend talking on the phone that month? Round to the nearest whole minute

PLEASE ANSWER ASAP I ONLY GOT UNTIL 6:30 AND I DONT GET IT