Answer: His total weekly earnings =$252
Explanation:
Given: The Mountain Spring Water Company pays delivery drivers $210 per week plus 20% of their weekly sales.
If a driver had sales of $50 for the week, then his total weekly earnings
![=\$210+20\%\ of\ \$210\\\\=\$210+0.2*\$210.....[\text{Convert percentage into decimals}]\\=\$210+$42\\=\$252](https://img.qammunity.org/2020/formulas/mathematics/high-school/fws9zrqe0p5bvvgonz4liipioxn59w8wk7.png)
⇒ His total weekly earnings =$252