we know that
Lisa paid \(\$43.95\) for \(16.1\) gallons of gasoline
so
by proportion
Find the cost of \(1\) gallon of gasoline
\(\frac{43.95}{16.1}\frac{\$}{gal}=\frac{x}{1}\frac{\$}{gal} \\ \\x*16.1=43.95\\ \\x=43.95/16.1\\ \\x=\$2.73\)
therefore
the answer is
The cost per gallon is equal to \(\$2.73\)
