garrettcoker40 garrettcoker40 04-04-2022 Mathematics contestada What is the first term of the arithmetic series? a1 = 143 ⇒ 8 What is the 20th term of the arithmetic series? a20 = ⇒ 46 How many stitches are in the first 20 rows of the shawl? ⇒ 540 stitches