Find an equation for the nth term of the arithmetic sequence. -20, -16, -12, -8, ...
Options:
an = -20 x 4(n - 1)
an = -20 + 4(n - 1)
an = -20 + 4(n + 2)
an = -20 + 4(n + 1)

He letter p on the number line below represents the number . (use the hyphen for negative numbers and write answer as a decimal, such as –7.2) number line from negative 7 to positive 7 in increments of 0.5 is shown. only the whole numbers are labeled. a point labeled p is placed at the eleventh tick mark to the left of 0.