What is the explicit formula for the arithmetic sequence 4 fifths comma 29 over 30 comma 17 over 15 comma 13 tenths ?
A
A sub n is equal to 1 sixth plus 4 fifths times open paren n minus 1 close parenB
A sub n is equal to 4 fifths plus open paren negative 1 sixth close paren times open paren n minus 1 close parenC
A sub n is equal to negative 1 sixth plus 4 fifths times open paren n minus 1 close parenD
A sub n is equal to 4 fifths plus 1 sixth times open paren n minus 1 close paren