Answer:Let's solve these percentage problems:1. 91% of 50 = 45.5 (You were already correct!)2. 59% of 40 = 23.63. 81% of 50 = 40.5 (You were already correct!)4. 75% of 20 = 155. 60% of 3 = 1.86. 56% of 7 = 3.927. 69% of 30 = 20.78. 29% of 90 = 26.19. 31% of 20 = 6.210. 82% of 10 = 8.2