Which product is negative?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

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.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28