LOSSON 2 3 4 Lesson LOSS 5 6 Less Lesson 2: ARITHMETIC SEQUENCES ACTIVITY 2.6: LET'S TRY IT TOGETHER Calculate the following using the given data. 1. If a₁ =-7, d = 4, and a₁ = 81, then what is n? an 2. If a₁ = 37, and a₁₁ = -3, then what is d? a21 3. If d = 4, and a26 = 81, then what is a₁? Lesson LOSSON 7 8 6 10