Acompany sells boxes of bracelets (b) for $30 and boxes of necklaces (n) for $50. they make batches of bracelets that fill 5 boxes and batches of necklaces that fill 7 boxes. the company only has 48 boxes. which system of equations the company plan to make $320? b = 48 - n. 5b + 7n = 48. b = 48 - n. 30b + 50n = 320. 5b = 48 - 7n. 30b + 50n = 320. 5b = 48 - 7n. 30b - 50n = 320