Perform the following:

1. Translate the words into a mathematical expression: n more than 8.
2. Translate the words into a mathematical expression: the product of 4 and a number g.
3. Translate the words into a mathematical expression: the difference of 5 and twice x.
4. Translate the words into a mathematical expression: the quotient of 6 and x.
5. Translate the words into a mathematical expression: the sum of 3 times m and 9.
6. Translate the words into a mathematical expression: 7 plus the quantity of 8 minus 6.
7. Evaluate 8 - n if n = 3. 8. Simplify (20 - 2) ÷ 9.
9. Evaluate 3x + 1 if x = 4.