Answer:
C. -4a + 22b
Step-by-step explanation:
12a + 26b -4b – 16a
= 12a – 16a + 26b – 4b
= -4a + 22b
Answer: (2;-9).
Step-by-step explanation:

Answer:
QR ≈ 16.2 ft
Step-by-step explanation:
Using the tangent ratio in the right triangle.
tan62° =
=
=
( multiply both sides by 8.6 )
8.6 × tan62° = QR , then
QR ≈ 16.2 ft ( to the nearest tenth )
S= 5? that's at the top of my head