We know that 4 and below rounds down and 5 and above round up
That means she walked 3.5 miles her sister walked 1.2 miles
and her brother walked 0.9 miles
1.2+0.9=2.1
3.5-2.1=1.4
B about 1.4 miles
Answer:
616.788
OR
616.79 (rounded answer)
Step-by-step explanation: