Answer:
45a. 5% decrease = 95% total
95% = 0.95
300 × 0.95 = 285
300 - 285 = 15
The difference is 15 cars
45b. 285/1 × 1/5 = 285/5 = 57
285/1 × 1/3 = 285/3 = 95
285 - 57 - 95 = 133
133 cars were not racing or WWII models
46. Inequality:
[tex]2500 + 0.42(s) \geqslant 8800[/tex]
Graphed solution: see above pic
42. 15/20
15 ÷ 20 = 0.75
0.75 × 100 = 75
75% experimental probability
120 × 0.75 = 90
He'll sell 90 bouquets
