Help please I need this for my homework

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay