I can h lo just do the message thing and I can probably help
F(3)={2(3)-9}
F(3)={6-9}
F(3)={-3}
Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
we know that
m∠LOM+m∠MON=m∠LON ----> by angle addition postulate
we have
m∠LOM=2x°
m∠MON=x°
m∠LON=90° ----> is a right angle
substitute the values

solve for x


Answer:
True
Step-by-step explanation:
4x<8
divide
x<2
3X + 5 = 2X
X + 5 =0
X = -5