Answer:
6.28km
Step-by-step explanation:
C=314/100×2
I think that the answer is 6.28km
3/5+(-7/40)
=3/5-7/40
=24/40-7/40
=17/40
The fourth one I believe
4
3*4+2=14
12+2=14
14=14
7.78
6.5 x 1.88 = 12.22
20.00 - 12.22 = 7.78
