Answer: the picture has no answer it's invalid but I will try:
X is a 90 degree angle other than that I can't do anything
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
5 times 3 is 15 and 12 and 15 and 12 divided by 3 you will get 5/4
I think A, but im not 100% sure
