Camilla makes and sells jewelry. she has 8160 silver beads and 2880 black beads. each necklace will contain 85 silver beads and 30 black beads. how many necklaces can she make?

The big black bird company (bbc) has a large order for special plastic-lined military uniforms to be used in an urgent military operation. working the normal two shifts of 4040 hours each per week, the bbc production process usually produces 2 comma 6002,600 uniforms per week at a standard cost of $125125 each. 7070 employees work the first shift and 3030 the second. the contract price is $240240 per uniform. because of the urgent need, bbc is authorized to use around-the-clock production six days per week. when each of the two shifts works 7272 hours per week, production increases to 4 comma 2004,200 uniforms per week but at a cost of $160160 each.