Sarah will buy bracelets and necklaces in order to sell them in her schools fund raising activity. the bracelets cost $2 and the necklaces cost $3. she does not want to spend more than $300. total number of bracelets and necklaces sarah needs to buy is at least 120. a. write a system of inequalities. b. graph the system of inequalities and shade the solution set. c. at least how many necklaces does sarah need to buy? explain your answer.