Answer:
9. 70 degrees
10. 65 degrees
11. 40 degrees
12. 75 degrees
we have to simplify,
see in pic.
Step-by-step explanation:
40cm—0.4m
4000mm=4m
4mm=0.4cm
4m=400cm
40km=40,000m
Can’t see the last box in the left line.
1km=1000m
1m=100cm
1cm=10mm