Free points have a great day (little nightmares)

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.

Which expression is equivalent to -5(3x - 6/7)