Answer:
3.1
Step-by-step explanation:
5 x5 =25
25+3=28
the other children are 4 years old
b
yes
The answer is A
f(x) = x+2
g(x) = x²
g(fx) = (x+2)²
= x²+4x+4
g(fx)(-5) = (-5)²+4(-5)+4
= 25 - 20 + 4
= 9