Answer:
$50.74.
Step-by-step explanation:
We are asked to find the total cost of dinner, when gratuity is 18%.
The total cost of the dinner would be $43 plus 18% of $43.
[tex]\text{The total cost of the dinner}=\$43+\frac{18}{100}\times \$43[/tex]
[tex]\text{The total cost of the dinner}=\$43+0.18\times \$43[/tex]
[tex]\text{The total cost of the dinner}=\$43+\$7.74[/tex]
[tex]\text{The total cost of the dinner}=\$50.74[/tex]
Therefore, the total cost of dinner is $50.74.