about algebra, please help me solve the following problems. Can you solve them all?

Question

Answer the following algebraic problems.

1) 1/3 the difference between x and y when x is greater than y.

2) The money of Johny is 7 pesos more than the money of Kim.

3) The age of Mary is 5 times the age of Amy.

4) The cost of x sq. meters of land at 500 pesos per sq. meters.

5) A fraction whose numerator is the product of x and y and
whose denominator is 2.

6) A number which is greater than y by 4.

7) The greater part of 200 if y is the smaller part.

8) The cost of x ballpens at y per ballpen.

9) The remainder of a 20-meter rope after x has been cut off.

10) The distance travelled by a car running at y kilometer per hoop for 7 hours.

11) The wage of a laborer working for x hours at 80 pesos/hour.

12) The portion of a task which can be finished by a man in 8 hours after tha man has worked for x hours.

13) A number which is 5 times less than x.

14) The sum of three consecutive numbers.

15) The true value of a two-digit number.

gud luck!

Answer 1

1. x-y
2. x+7
3. 5x
4. 500x
5. xy/2
6. y+x+4
7. 200-y
8. xy
9. 20-x
10. 7y
11. 80x
12. 8-x/8
13. x-5
14. x+x+1+x+2
15. 10x+y

it's all correct
hope that helps
-_-

Answer 2

(1/3)(x-y)
J= K+7
M= 5A
500x pesos
xy/2
x=y+4
x= 200-y
xy
20-x
7y km
80x pesos
Problem 13 makes no sense.
x+x+1+x+2 = 3x+3
10t+u where t is ten's digit and u is unit's digit