2 minutes.
EXPLANATION:
To find the answer, we can find an equivalent fraction for each.
1/6 x 6 = 6/6
1/12 x 6 = 6/12
So every 1 minute Loki writes half a page.
Since 2 halves = 1.
2 minutes for 1 page.
Hope this helps!
Answer:
2/3
Step-by-step explanation:
42/63 = 2/3
15/22.5 = 2/3
3/4 changed to 6/8 makes it a 7/8 when adding making this most simplified into 7/8
Answer: the last one!! 
Step-by-step explanation:
When there is a line under it means no more than!
Answer:
4
Step-by-step explanation:
3- 3
23 - 3
20 / 5 = 4.
4 x 5 + 3 = 23, so X is 4.