All of the above. it is a three dimensional pyramid, and a "polyhedron" means it is triangular.
3 notebooks will cost $3.15
Answer:
$333.32 hope this helps have a nice day please give me brainliest :)
Step-by-step explanation:
So since x= sand bags replace x with 0 so 7y=105 is left divide by 7 and you get y=15 so 15 bags
