I'm pretty sure the answer is B) 11c+8.5(c-46)=470
hope i help :)
Answer:
The answer is A.
Step-by-step explanation:
A polyhedron is a three-dimensional solid made up of polygons. It has flat faces, straight edges, and vertices. For example, a cube, prism, or pyramid are polyhedrons.
1. false because they have the same slope and y-intercept so they have infinite number of solutions
2. true
Answer:
x=3
Step-by-step explanation:
7x-3=18
7x=18+3
7x=21
x=3