Cynthia rounds a number , x , to one decimal place. the result is 6.3 write down the error interval for x.

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.

4 inches will get you 10.16 centimeters, but you can either do 10.1 or round up to 10.2. good luck and hope this : )