For #18
you would divide 3y over 3 witch would cancel out then you would divide 9.5 over 3 and you would get (3.16) i think
For this case we have that by definition, the point-slope equation of a line is given by:

We have the following points:

We chose a point:

Substituting in the equation we have:

Finally, the equation is: 
Answer:
OPTION C
Answer:
Step-by-step explanation:19 and 31
I will answer in just a second I’m showing work
Answer:
t = 7 • ± √2 = ± 9.8995
Step-by-step explanation: