Answer:
1) 9450 = 21n
2) 9450/21 = 21/21n
450 = n
3) you can check the answer by multiplying 450 by 21
Step-by-step explanation:
hope this helped
let me know if I am incorrect
9450 = 21
9450/21 = 21/21
450 = N
check it by multiplying 450 by 21
if i'm wrong i'm very sorry
