Answer:
The selling price is $16.43
Explanation:
we know that
A markup percentage is the amount of the cost of an item that you add on to create the selling price
we have that
![100\%+210\%=310\%=310/100=3.10](https://img.qammunity.org/2020/formulas/mathematics/middle-school/2vcz981c7llozg3uhhxxa0emn045lw6fgc.png)
To find out the selling price, multiply the cost of a calculator by the factor 3.10
so
![\$5.30(3.10)=\$16.43](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4thhzveqlv3y69fk4uji6ikvnrl51vwi87.png)
therefore
The selling price is $16.43