Initial Conditions and Separation of Variables Practice Test

A solution to $\frac{dy}{dx}=\frac{y}{x^2}$ satisfies $y(1)=2$. Which is the particular solution?

A quantity satisfies $\frac{dR}{dt}=\frac{R}{t^{2}}$ for $t>0$ with $R(1)=2$. Which particular solution gives $R(t)$?