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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
Algebra 1 (Eureka Math/EngageNY)
Module 3: Linear and exponential functions
Topic A: Lessons 1-3: Arithmetic sequence formulas
Arithmetic sequence problem
Arithmetic sequence problem
Sal finds the 100th term in the sequence 15, 9, 3, -3...
License: CC BY-NC-SA by Khan Academy