C. The Tetrahhedron has 4 faces, all of which are triangles. It also has four vertices and six edges.
The answer is 9, hope this helped <3
Here is the equation to find that answer A=bh+2ls+ib i got it off line if its not right im sory
Answer:
x=-16
Step-by-step explanation:
4x– 15 = 17 - 4x+10x
4x+4x-10x = 17+15
-2x=32
-x=16
x=-16
