ANSWER
14 kilometres
Step-by-step explanation
Steve drives the following distances everyday:
=> 4.7 km to his job
=> 6.3 km to college
=> 2.6 km back home
To find the best estimate that Steve travels each day, we will round up each term to the nearest whole number then add them up:
4.7 km rounds up to 5 km (7 is greater than 4)
6.3 km rounds down to 6 km (3 is less than 4)
2.6 km rounds up to 3 km
Now, to add them:
(5 + 6 + 3) km
= 14 km
Therefore, the best estimate of the distance that Steve travels every day is 14 kilometres