Math please help with these word problems i have
posted by Tony .
1. The circumference of a circle is the product of the number π and twice the radius.
2. The area of a square is the square of the length of a side.
3. The perimeter of a square is four times the length of a side.
4. Force equals the product of mass and acceleration.
5. Pressure is force per unit area.
6. The total cost of manufacturing x kites is $3.95 times the number x of kites manufactured.
7. The total revenue from selling y footballs is $13.45 times the number of footballs sold.
8. The product of two numbers y and z is 72.
9. The length of a yard is 20 feet more than its width.
10. The length of the side of a box is twice its width.
11. The cost of producing cookies is the sum of the cost of the ingredients used, the overhead and
the labor.
12. The cost of owning a bike is directly proportional to how many times you use it.
Please help i tried this 4x's teacher gave it back and all 4 times this is my last help

I'll be glad to check your answers.

1.360pie *2r
2.Area+4L
3.4x(4s)
4.f=M+A
5.P(u)
6. x=3.95*x
7. 13.45*Fbs
8. x*2yz/72
9. L/20f+W
10. 2x(2x+2)=W
11. ?
12. ?
Sorry i suck at these 
Apparently you haven't included all of the information.
1. Where did you get 360?
2. A = 4^2
3. P = 4s
4 and 5. I don't know.
6. Why do you have 2 x's?
7. 13.45y
8. yz = 72
9. L = 20 + W
10. L = 2W
11. Cost = ingredients plus overhead plus labor
12. False 
1. The circumference of a circle is the product of the number π and twice the radius.
C = π * 2r, or more commonly written as
C = 2πr
2. The area of a square is the square of the length of a side.
A = s^2
4. Force equals the product of mass and acceleration.
F = ma
5. Pressure is force per unit area.
If F is the force applied over an area A,
P = F/A
6. The total cost of manufacturing x kites is $3.95 times the number x of kites manufactured.
C = 3.95x
12. The cost of owning a bike is directly proportional to how many times you use it.
If you use it x times,
C = kx
where k is some constant value. 
thank yall so much

You're welcome.