Answer:
Step-by-step explanation:
we have

we know that
The sum of a quadratic equation and a linear equation will be a quadratic equation
so
Combine like terms

Answer:
This is a easy question you can find the answer online. It was on a state exam and all the answers and work is shown how to do it.
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
11+8=19
19×3=57
33-54=24
Answer:
40% of the class are girls
Step-by-step explanation:
9 boys+6 girls=15 students
6 girls/15 students=40%