Answer:
CE = 10.
Step-by-step explanation:
EC / 25 = 6/15
EC = 25*6/15
EC = 10
Answer:

Step-by-step explanation:
We need to find the solution to the following system of equations:
and 
By plugging the value of 'y' into the first equation we have that:
⇒ 
Solving for 'x' we have:

So, the solution to the system of equation is: (37.5, -30)
Answer:
The last one
Step-by-step explanation:
hope this helps!!
Answer: when x =0
Step-by-step explanation:
Y=3(0)+1
0+1
1