Answer:
2
Step-by-step explanation:
X=-3+y is the answer I got
Answer: 0.924
Step-by-step explanation:
Given

Simplify
to 

Cancel y

Cancel x

Use the rule, 

Simplify

Simplify
0.924
Answer:
1/4
Step-by-step explanation:
there is 3 black marbles and 3+4+5=12 total marbles. 3/12=1/4
Where is your question?! please dont post pictures.