Answer:
A. Tom made more money than Martin.
Explanation:
We have been given that Tom and Martin both worked 8 hours this week and sold $520 worth of meals. Their hourly wages are $2.15 and $2.50, respectively. In addition, Tom's percent of tips was 15% while Martin's was 12%.
Tom's weekly wages would be his hourly wages times 8 plus 15% of total sales, that is:
![\text{Tom's weekly wages}=\$2.15* 8+(\$520*(15)/(100))](https://img.qammunity.org/2020/formulas/mathematics/high-school/qorwzlhpgjvvghil3ktcv1f7uxkn2mlb9x.png)
![\text{Tom's weekly wages}=\$17.20+(\$520* 0.15)](https://img.qammunity.org/2020/formulas/mathematics/high-school/y50jmdht4opuskgzwfen7pbgtzv288hleu.png)
![\text{Tom's weekly wages}=\$17.20+\$78](https://img.qammunity.org/2020/formulas/mathematics/high-school/9l5ehb63z3da2eab2meavbketw6r83doi4.png)
![\text{Tom's weekly wages}=\$95.20](https://img.qammunity.org/2020/formulas/mathematics/high-school/tcgvib3nq5ygfcls1ira0jmyl5hq24n19b.png)
Martin's weekly wages would be his hourly wages times 8 plus 12% of total sales, that is:
![\text{Martin's weekly wages}=\$2.50* 8+(\$520*(12)/(100))](https://img.qammunity.org/2020/formulas/mathematics/high-school/arx196ehqplm1shi1ngfq9wjtu9ce4ayqp.png)
![\text{Martin's weekly wages}=\$20+(\$520* 0.12)](https://img.qammunity.org/2020/formulas/mathematics/high-school/e3jewxcos2dyr1l43e7x0a2pnjpqhjgu9s.png)
![\text{Martin's weekly wages}=\$20+\$62.40](https://img.qammunity.org/2020/formulas/mathematics/high-school/lhrz3usfw0dbds05oc2rhhnnl3sw1vxool.png)
![\text{Martin's weekly wages}=\$82.40](https://img.qammunity.org/2020/formulas/mathematics/high-school/kdnn6czha04cglk6jercge0xpfuvcpo7vt.png)
Since Tom's weekly wages ($95.20) is more than Martin's weekly wages ($82.40), therefore, option A is the correct choice.