Combinations Probability?

(: Muffin Man asked: 1. A bag contains 12 white golf balls and 8 orange golf balls.
a) Write a combination expression for teh number of ways that four white balls can be chosen from the bag.
b) Write a combination expression for the number of ways that four balls of any colour can be [...]

identify the inequality?

Jesisca A asked: When Spheres-R-Us ships bags of golf balls, each bag must contain 380 balls, plus or minus 9 balls. Identify the inequality which represents an acceptable number of golf balls in each bag.
A. |380-9|=b
B.|380-b|=9
C.|9-b|=380
D.|b-9|=380

3 inequality questions?

joe asked: 1. when sphere-r-us ships bags of gold balls, each bag must contain 800 balls, plus or minus 7 balls. identify the inequality which represents an acceptable number of golf balls in each bag.
2. when manufacturing 15/16-inch bolts the difference between the size of the bolt and 15/16 inch must be at most 3/100 [...]

Absolute Value Linear Equations Story Problem Help?

musicafan24 asked: Absolute Value:
When Sphere-R-Us ships bags of golf balls, each bag must contain 730 balls, plus or minus 4 balls. Identify the inequality which represents an acceptable number of golf balls in each bag.
When manufacturing 15/16 inch bolts the difference between the size of the bolt and 15/16 inch much be at most [...]