Translate the following phrase into algebraic expressions. Use any variable to represent the unknown unless it is indicated in the statement.

1. Eight more than twice a number.

2. Seven less than a number.

3. Three-fourths of a number increased by twelve.

4. Five times the sum of a number and nine.

5. The product of twice a number and five, increased by six.

6. Four times the square of a number.

7. Three times the sum of two numbers, subtracted from two.

8. The square root a number, decreased by one.

9. The ratio of x and 2y.

10.The product of a number and five divided by the difference of the same number and three.