A school club is selling reflectors for bicycle safety day. Each member is encouraged to sell at least 50 reflectors. You sell 17 on Monday and 12 on Tuesday. How many reflectors do you need to sell on Wednesday to meet your goal?

Total number of reflectors sold on Monday = 17

Total number of reflectors sold on Tuesday = 12

The goal is to sell 50 reflectors.

Let the number of reflectors to be sold on Wednesday be x

So,

17 + 12 + x = 50

29 + x = 50

x = 21

Hence, the person should sell 21 reflectors on Wednesday to meet his goal.