Can someone help me with this problem! __ + (4) = -1
whats the missing number
( I swear I'm smart lol)

For which rational expression is -2 an excluded value of x?

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.