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Each year for 3 years, the time it takes to run a mile decreases by 7 seconds. What number represents this total change in time.

Each year for 3 years, the time it takes to run a mile decreases by 7 seconds. What number represents this total change in time.
asked 221k views
4 votes
Each year for 3 years, the time it takes to run a mile decreases by 7 seconds.

What number represents this total change in time.

asked
User Liu Zhang
by
8.1k points

1 Answer

6 votes

Answer:

21

Explanation:

answered
User Viksit
by
7.7k points
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