nework 6: Solve the following WORD problems. Use ANY solution for the system that you will obtain. 1. Bert has $8.80 in pennies and nickels. If there are twice as many nickels as pennies, how many pennies does Bert have? How many nickels? (ANS: 80 pennies, 160 nickels) 2. Tickets to a concert cost either $12 or $15. A total of 300 tickets are sold, and the total receipts were $4140. How many of each kind of ticket were sold? (ANS $12-120 tickets, $15-180 tickets) 3. John received an inheritance of $12,000$12,000 that he divided into three parts and invested in three ways: in a money-market fund paying 3%3% annual interest; in municipal bonds paying 4%4% annual interest; and in mutual funds paying 7%7% annual interest. John invested $4,000$4,000 more in municipal funds than in municipal bonds. He earned $670$670 in interest the first year. How much did John invest in each type of fund