Answer:
D)
Step-by-step explanation:
I don't know if there was a picture, but d will made a triangular prism. All are possible but they will look more like a dome.
Answer:
x=9, y=3
Step-by-step explanation:
-4x+6y=-18
y=-2x+21
-4x+6(-2x+21)=-18
-4x-12x+126=-18
144=16x
x=9
y=-2x+21
y=-18+21
y=3
Answer:
4.5 C
Step-by-step explanation:
10x 3 =30
1.5 c × 3 =4.5