Question

помогите плиззззззззззззззззззззззззззз

Answer 1

30 : 3/10 = 30 × 10/3 = 300/3 = 100
15 : 3/10 = 15 × 10/3 = 150/3 = 50
6 : 3/10 = 6 × 10/3 = 60/3 = 20