A school group is selling bracelets at a craft show for $2.50 each to raise money for a local charity. The craft show organizers get the first $20 the group makes selling bracelets at the craft show. The rest of the money the group makes will go to the charity. Which of the following inequalities represents the number of bracelets (b) that must be sold to pay the craft show organizers and make at least $100 for the charity.