Chapter 1, Equations and Inequalities - 1.6 Solve Inequalities - 1.6 Exercises - Problem Solving - Page 47: 59a

$0.65\times84+0.15\times80+0.2w \geq 85$ $0.65\times80+0.15\times100+0.2x \geq 85$ $0.65\times 75+0.15\times95+0.2y \geq 85$ $0.65\times80+0.15\times90+0.2z \geq 85$

Write inequalities For Amy: $0.65\times84+0.15\times80+0.2w \geq 85$ For Brian: $0.65\times80+0.15\times100+0.2x \geq 85$ For Clara: $0.65\times 75+0.15\times95+0.2y \geq 85$ For Dan: $0.65\times80+0.15\times90+0.2z \geq 85$