all u do is see what looked right and add
8 multiplied by 1 1/3 = 10.66 as fraction it’s = 10 2/3
Answer:
The oldest age of Olivia’s sister can be 11 years.
Step-by-step explanation:
Given: Olivia’s sister’s age is x years.
To write: inequality that can be used to represent the given situation.
As Olivia is 6 years older than her sister,
Olivia's age 
As the sum of their ages is no more than 28 years,

So, the oldest age of Olivia’s sister can be 11 years.
F(x)=x-5
g(x)=x^2
Now adding f(x) and g(x)
x-5+x^2-1
x^2+x-6
x^2+(3-2)x-6
x^2+3x-2x-6
x(x+3)-2(x+3)
(x-2)(x+3) answer