Let's break down the questions on the image:

Question 3:

You are asked to evaluate the expression below when $a = 3$, $b = 4$, and $c = 1$.

Expression: $c + 4b + a$

To solve this:

• Substitute the values of $a = 3$, $b = 4$, and $c = 1$ into the expression.

$c + 4b + a = 1 + 4(4) + 3$

Now calculate:

$1 + 16 + 3 = 20$

So, the value of the expression is 20.

Question 4:

You are asked to find the value of $3x - (-2)$ when $x = 6$.

This simplifies to:

$3(6) - (-2) = 18 + 2 = 20$

So, the value is 20.

Question 5:

The expression you need to simplify is:

$-4(2x + 2) - 9x$

Distribute the -4:

$-4(2x) - 4(2) - 9x = -8x - 8 - 9x$

Now, combine like terms:

$-8x - 9x - 8 = -17x - 8$

So, the simplified expression is $\boxed{-17x - 8}$.

Would you like to explore any of these problems further or have any questions?

Related Questions:

1. What happens if $a = 5$ and $b = 2$ in the first expression?
2. How does the result change if $x = -6$ in the second problem?
3. What other methods can be used to simplify expressions like the one in question 5?
4. How do we solve for a variable if we are given a value for the expression instead of the variable itself?
5. What is the importance of distributing terms in algebraic expressions?

Tip: Always check if you can combine like terms before simplifying, as this reduces the complexity of the expression.