1. Solve the problem. If one book of stamps lasts a family three months. How many books of stamps would be needed to last the family a year? Show your step by step work! Include correct units with your solution.
2. Solve the problem. If one book of stamps lasts a family three months. How many books of stamps would be needed to last the family a year? Show your step by step work! Include correct units with your solution.
3. Find a counterexample to the statement: The cube of a number added to the sum of three times the number and 3 is a prime number. Justify your solution by supporting it with step by step work.
4. Sally and Bill work at different jobs. Sally earns $12 per hour and Bill earns $10 per hour. They each earn the same amount per week but Bill works 3 more hours. How many hours a week does Bill work? Show your step by step work!