5x - 11 < -11
5x < 0
x < 0
4x + 2 > 14
4x > 12
x > 3
x<0 or x > 3
Answer:
c<=4
Step-by-step explanation:
Euler's formula for a polyhedron is given by:

Make E, the subject of the formula:

Put F = 20, V = 12, to obtain E,

Therefore, there are 30 edges
If you look at the picture, you set it up as part over whole is equal to percent over 100. then you just multiply across.