Answer:
-4 on both sides
Step-by-step explanation:
I hope this is one of the choices
The sum of the measures of two complementary angles is 90°. To put it another way, m∠P + m∠Q = 90°.
So, we can substitute the given values of the angles into this equation.

Then, to find m∠Q, we plug in 12 for x for the original expression of Q to get

.
Answer:
Q'(3, 4 )
Step-by-step explanation:
Under a reflection in the x- axis
a point (x, y ) → (x, - y ), thus
Q(3, - 4 ) → Q'(3, 4 )
If 9 chairs were sold, the store has to sell 11 tables in order to meet the requirements.