Divide 84 by 4. : 84 / 4 = 21 . There are 21 4s in 84
Answer:
A) (-infinity, -7]U[-2, -1]
B) [-7, -5]
C) [-5, -2]U[-1, infinity)
Standard form is Ax +By =c
y = -4/5 x -7
multiply by 5
5y = -4x -35
add 4x to each side
4x +5y = -35
multiply by -1
-4x -5y = 35
Choice D