1. What is the value of x in the equation 3x + 4 = 13?
2. What is the value of y in the equation 2y - 5 = 7?
3. What is the value of z in the equation z/5 = 7?
A factory produces 500 widgets per hour. If the factory runs for 8 hours a day, how many widgets are produced in a week?
Hint: Use the multiplication symbol: ×