Determine the measure of angle DFB
1) 135
2) 67
3) 69
4) 68

How do you solving the solution of each system using elimination?

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.