Answer:
2) 1=3, 2=6, 6=18, 10=30
3) 1= 1.75, 2=3.5, 8=14, 10=17.5
4) 1=10.5, 4=42, 8=84, 10=105
5) 1=8.75, 6=52.50, 10=87.50, 40=350
6) 1=1.5, 8=12, 24=36, 36=54
7) 1=7.5, 2=15, 4=30, 10=75
8) 1=15, 6=90, 10=150, 12=150
Explanation:
take number 4 for example, I divided 42 with 4 and it came up with 10.5 to double check I multiplied 10.5 four times and it came up with 42. You just multiply 10.5 by the shirts. 10.5 x 8 is 84, 10.5 x 10 is 105.