Answer:
f(x)=(x+3)(x-4)(x+3)
Would normally explain, but doing an exam rn. You got this!
X = the brother
c = carly
c = 3x
c + x < = 24
now we sub
3x + x < = 24
4x < = 24
x < = 24/4
x < = 6 ...oldest age the brother can be is 6
-2.5 because a positives opposite is a negative.
Answer:
1. x=11/4
Step-by-step explanation:

u should x 20 then u will get




