I think it is 21 and 50. The only common factor they have is 1.
All the others are divisible by 1 & 3.
Answer:
B) 0.60n+1.48n = 176.80
Step-by-step explanation:
0.60 for every spiral wire per book = 0.60*n
0.74 per chipboard cover, 2 needed for each book = 1.48 per book = 1.48*n
Put it together: 0.60n+1.48n = 176.80
B..............
c>=3 and n<0 and p<=(9-3 c)/n
