
Step-by-step explanation:








Answer:
[(a)^2-(4^2)](a+4)
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
congruence means duplicate so you have to see its reflection
Answer:
x>9
Step-by-step explanation:
-4x + 15 < -21
Subtract 15 from each side
-4x + 15-15 < -21-15
-4x < -36
Divide each side by -4, remembering to flip the inequality
-4x/-4> -36/-4
x >9