Answer:7
Step-by-step explanation:
21=42-3r
21-42=3r
-21=3r
r=7
Answer:
the last one
Step-by-step explanation:
the image of [0.1] is 1 using X and now it's X+3
so the image will be 4
Answer:
13:7
Step-by-step explanation:
If you divide each number (6.5 and 3.5) by .5
6.5/.5=13
3.5/.5=7