Answer:
1.
A) 12.7
B) 6
C) The black pen
2.
A) 2000
B) 3
C) Sally
D) They rode 1 kilometers farther
E) They rode 1000 meters farther
3.
A) 17.78
B) 25.4
Explanation:
A.john ride bike in metre=2×1000=2000m
B.salli ride a bike in kilometre=3000/1000=3 km
C.salli rode a bike fastest.sorry i do not know d,e
3.A=7×2.54=17.78cmB.10×2.54=25.4cm