Answer:
the volume of triangular prism in cubic meters is 5*12+3*13=99
5×12×3×13=2340
x,y=-19,55
Step-by-step explanation:
plug in y.
5x+2(-3x-2)=15
5x-6x-4=15
-x=19
x=-19.
Plug in.
y=-3(-19)-2
y=55
correct is B.
Hope this helps :D
A. 64m