6). (3 points) **3 times my sister's age plus 6 is my dad's age. How old is my sister if my dad is 45?**

Equation:___________________________

Answer:___________________________

7). (3 points) **The perimeter of a rectangle is 28 inches. One side is 6 inches long. What is the length of the other side?**

Equation: __________

Answer: __________