During this year, the first cellular phone was introduced to the market. It cost $3,500 and weighed an enormous 16 oz. (Cell phones today weigh less than 5 oz.) The sum of the digits in the thousands place and the ones place is half of the digit in the tens place. The digit in the thousands place is neither prime nor composite. The digit in the hundreds place is the sum of the digits in the thousands and the tens place. The digit in the hundreds place is 3 times the digit in the ones place. What year am I?

Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?