What is the value of this expression
40/9
4/3
16/3
4/9
What is the value of x for the solution to this system of equations?
3
-5
-3
5
Determine which of the following is a function
{(-2,3),(4,-5),(-2,-2)}
{(1,1),(1,2),(1,3)}
{(9,3),(8,9),(-5,0)}
{(-8,7),(-8,-7),(6,7)}