Iam the tape recorder in the french language lab. i make $11.30 per hour, and i worked 29 1/2 hours this week. i received a bonus of $3.50 when i taught the students how to say “i love you” in french.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

Prove that 16^4-2^13-4^5 is divisible by 11.