Translate each word phase or word sentence into algebraic expression.

1. Six more than a number.
2. A number decreased by 2.
3. One-half of a number.
4. Two less than 5 times a number.
5. The product of 4 and the square of a number .
6. Six times the sum of a number and 3.
7. A number increased by -7 is 2.
8. Four more than a number is 27.
9. The product of 8 times a number is 56.
10. Twenty-four less than twice a certain number.
11. Eighteen fewer than half a number.
 12. Five more than the quotient of a number and 2.
13. Three less than a number divided by 5.
14. The difference of a number and 28 is 140.
15. The quotient of a number and 7 is 27.
16. The sum of the squares of a number x and 3 yields 25
17. The square of a sum of x and y
18. Nine less than the sum of c and d
19. The difference between x and y divided by 4 
20. The sum of the squares of y and z