People have to see the video to answer these questions
Answer:
if they are similar then their sides are proportional and the following would be true:
40/30 = 48/36
reduce both sides:
4/3 = 4/3
so, yes, they are similar.
Step-by-step explanation:
Answer:

Step-by-step explanation:

Additive inverses combine to get 0. So, k is -1.4. The sum is 0. Hopefully that will help.