Domain means which values the function can have which make it true or Possible to solve
So all you got to do is set the denominator = to 0 and solve for x
You will get x=7
4/(7-7) is not possible
So x cannot equal to 7 because you cant divide a number by 0!
Answer:

Step-by-step explanation:
The formula of a surface area of a ball (sphere):

R - radius
We have R = 15in. Substitute:

If you want to get an approximation, then:

Answer:
20x+21y+14
Step-by-step explanation:
Combine like terms:
150x-80y+50-50x-25y+20=
100x-80y+50-25y+20=
100x-105y+50+20=
100x-105y+70
100x-105y+70 can be divided by 5 and get 20x+21y+14.
Hanna bought 85 candies and ate 20 of them. How many candies are left?
4(3x+4) This should hellp