Chapter 2 - Section 2.6 - Percent and Mixture Problem Solving - Exercise Set - Page 160: 37

Wisconsin 56% Oregon 7% Massachusetts 28% Washington 2% New Jersey 7% Total 100%

Wisconsin 385 | $\frac{385}{689}\approx 56$% Oregon 50 | $\frac{50}{689}\approx7$% Massachusetts 190 | $\frac{190}{689}\approx28$% Washington 15 | $\frac{15}{689}\approx2$% New Jersey 49 | $\frac{49}{689}\approx7$% Total 689 | $\frac{689}{689}=100$%