1. The problem is to list the first 10 multiples of each given number: 8, 11, 15, 20, 50, 17, and 19. 2. The formula for the $n$th multiple of a number $a$ is: $$\text{multiple}_n = a \times n$$ where $n$ ranges from 1 to 10. 3. Calculate the first 10 multiples for each number: - For 8: $8 \times 1 = 8$, $8 \times 2 = 16$, $8 \times 3 = 24$, $8 \times 4 = 32$, $8 \times 5 = 40$, $8 \times 6 = 48$, $8 \times 7 = 56$, $8 \times 8 = 64$, $8 \times 9 = 72$, $8 \times 10 = 80$ - For 11: $11 \times 1 = 11$, $11 \times 2 = 22$, $11 \times 3 = 33$, $11 \times 4 = 44$, $11 \times 5 = 55$, $11 \times 6 = 66$, $11 \times 7 = 77$, $11 \times 8 = 88$, $11 \times 9 = 99$, $11 \times 10 = 110$ - For 15: $15 \times 1 = 15$, $15 \times 2 = 30$, $15 \times 3 = 45$, $15 \times 4 = 60$, $15 \times 5 = 75$, $15 \times 6 = 90$, $15 \times 7 = 105$, $15 \times 8 = 120$, $15 \times 9 = 135$, $15 \times 10 = 150$ - For 20: $20 \times 1 = 20$, $20 \times 2 = 40$, $20 \times 3 = 60$, $20 \times 4 = 80$, $20 \times 5 = 100$, $20 \times 6 = 120$, $20 \times 7 = 140$, $20 \times 8 = 160$, $20 \times 9 = 180$, $20 \times 10 = 200$ - For 50: $50 \times 1 = 50$, $50 \times 2 = 100$, $50 \times 3 = 150$, $50 \times 4 = 200$, $50 \times 5 = 250$, $50 \times 6 = 300$, $50 \times 7 = 350$, $50 \times 8 = 400$, $50 \times 9 = 450$, $50 \times 10 = 500$ - For 17: $17 \times 1 = 17$, $17 \times 2 = 34$, $17 \times 3 = 51$, $17 \times 4 = 68$, $17 \times 5 = 85$, $17 \times 6 = 102$, $17 \times 7 = 119$, $17 \times 8 = 136$, $17 \times 9 = 153$, $17 \times 10 = 170$ - For 19: $19 \times 1 = 19$, $19 \times 2 = 38$, $19 \times 3 = 57$, $19 \times 4 = 76$, $19 \times 5 = 95$, $19 \times 6 = 114$, $19 \times 7 = 133$, $19 \times 8 = 152$, $19 \times 9 = 171$, $19 \times 10 = 190$