Fiona doubled the original amount in her savings account, s. which expression represents her new balance and what is that new balance if s=160? 2s; when s=160 the new balance in fiona’s savings account is $80. s/2; when s=160 the new balance in fiona’s savings account is $320. 2s; when s=160 the new balance in fiona’s savings account is $320. s/2; when s=160 the new balance in fiona’s savings account is $80.