Answer:
c = 9
Step-by-step explanation:
You're looking for a number so that when you use that number in place of x, you end up with 20.
f(x) = 3x - 7
f(c) = 3c - 7
20 = 3c - 7
Add 7
27 = 3c
Divide by 3
9 = c
Answer:

Step-by-step explanation:
The expression that we have in this problem is

First of all, we proceed by evaluating the power of the term in the brackets. We apply the rule:

So

Moreover, we have

Therefore,

So now the expression is

Now we apply the following rule:

So we have

Therefore, our expression becomes:

Answer:
32
Step-by-step explanation:
4 or less, let it rest. 5 or more, let it soar
Greatest common factor: 48
360 degrees, because all quadrilaterals (shapes with 4 sides) have angles that add up to 360 degrees