Answer:
18 fiction = 3
12 non fiction= 2
Step-by-step explanation:
6 days+12 days=18
so 18 fiction books+12 non fiction=20 fiction and 10 non fiction
3x-9y=24
-9y=-3x+24
y=-3/-9x-24/9
y=1/3x-8/3
enjoy it
Step-by-step explanation:c,b
39
using line and triangle property you can solve this question