cqnnyarts cqnnyarts 24-02-2021 Mathematics contestada find an equation for the nth term of the arithmetic sequence.-20, -16, -12, -8, ...a. an = -20 x 4(n - 1)b. an = -20 + 4(n - 1)c. an = -20 + 4(n + 2)d. an = -20 + 4(n + 1)
