Josiah walks from his house to the school in the morning and then from the school to his house in the afternoon. he does this 5 days in a week. if the distance from his house to this school is 0.9 kilometers, how far does he walk in a week?

He goes to school and comes back home per day. Which is written as:

0.9 (going to school) + 0.9 (going home) = 1.8

If he does it 5 days a week:

1.8 x 5 (days he goes to school) = 9

Josiah walks 9 km per week.

Hope it helped,

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