Answer:
21
Step-by-step explanation:
Multiply the second matrix by 6.
Add the corresponding cells in each matrix.
Answer:
opposite sides of a parallel are congruent.
Step-by-step explanation:
the symbol between AB and DC stands for "equal to", not parallel. boom roasted. (don't hate me if I'm wrong)
Answer:
its B
Step-by-step explanation:
hope it helped you