Techniques: Euler's method, first-order methods: separable; linear; exact homogeneous, Bernoulli, other substitution.
Possible applications include, but are not limited to, exponential growth/decay and Newton's Law of temperature change.
Here are questions that I hope will help you prepare:
Solve
ty' + 2y = t? for t > 0
y' + 2y = cos(3t)
y' - Sy
xseci dy
(? + 4ly' + 2ty = t('+4)