To find out how many reams of paper Landscape Elementary uses each week, we can start by dividing the total amount of paper used in 3 weeks by the number of weeks.
Given that they use 14 reams of paper every 3 weeks, we can calculate the usage per week as follows:
\[ \text{Reams per week} = \frac{\text{Total reams}}{\text{Number of weeks}} = \frac{14 \text{ reams}}{3 \text{ weeks}} \]
Calculating this gives:
\[ \text{Reams per week} = \frac{14}{3} \approx 4.66666667 \]
Rounding this to the nearest hundredth:
\[ \text{Reams per week} \approx 4.67 \]
Thus, Landscape Elementary uses approximately 4.67 reams of paper each week.