Selena is correct because if Jose wants to buy the pair of skis that cost $120, he needs to ensure that he earns enough money during his weekend work with his mom to cover the cost. Since he is saving to buy the skis, he needs to earn more than $7 each hour he works to accumulate the $120 required for the skis. If he earns exactly $7 per hour, he would need to work
[tex]\frac{120}{7} \approx 17.14[/tex]
hours to afford the skis, which is not possible since he can't work a fraction of an hour. Therefore, to ensure he can afford the skis, he needs to earn more than $7 per hour to cover any additional expenses and to meet the cost of the skis within a whole number of hours worked.
