First one is fine, but try to simplify as much as possible:
Second one is fine!
I did a couple of problems and am just asking if someone could check them for me to see if I got them right.
Solve for y in terms of t:
Ln(50-3y)=.5t+ln(5)
I got : y=(5e^(.5)-50)/-3
I think I got close but I'm not sure if I have it right
Ln(10-y)=2t+ln8
I got : y=-8e^2t +10