$2-)$ Load mtcars data from datasets package. View the first $6$ rows of the dataset for mpg$,$ hp and ht variables. How do you think hp and wt will influence the mpg$?$ Run a multiple linear regression for $\backslash ($ m p g i$=$b $\backslash$mathbf$\{0\}+\backslash$boldsymbol$\{$b$\}\backslash$mathbf$\{$h$\}\backslash$boldsymbol$\{$h p i$\}+\backslash$boldsymbol$\{$b$\}\backslash$mathbf$\{$w$\}\backslash$boldsymbol$\{$w t i$\}+\backslash$boldsymbol$\{$e$\}\backslash$boldsymbol$\{$i$\}\backslash ).$ Interpret the coefficients and the model overall.