Tim has m dollars. Rebecca has $6 less than 1/10 times the number of dollars that Tim has. Which expression represents the total amount of money that Tim and Rebecca have? If Tim has $70, how much money do Rebecca and Tim have altogether?

A.
The expression is 1/10m – 6, and the amount is $100.
B.
The expression is 11/10m – 6, and the amount is $71.
C.
The expression is 6m – 1/10, and the amount is $420.
D.
The expression is 1/10 – 6m, and the amount is $7.