When you subtract numbers what are some things you should remember

Determine the quotient of the following expression. (15n^2-27n) / 3

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

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.