Sergio's internet provider charges its customers $8 per month plus 5 per minute of on-line usage. Sergio

Fantastic news! We've Found the answer you've been seeking!

Question:

Sergio's internet provider charges its customers $8 per month plus 5¢ per minute of on-line usage. Sergio received a bill from the provider covering a period and was charged a total of $46.50. How many minutes did he spend on-line during that period?