Solve both using Python Code, Please Answer with $2$ seperate codes,

Apply least square fit to the following data for the model $y=a+bx+\frac{c}{x}.$ Solve the resulting system of equations

by hand using Gauss$-$Jordan elimination. Finally, use the best fit to calculate the value of $y$ at $x=3\mathrm{.}7.$

Linearize the model $y=ax{e}^{bx}$ and solve for the coefficients $($by hand$)$ to get the best fit for the following data:

Finally, use the best fit to calculate the value of $y$ at $x=1.$