Answer:
100cm
Step-by-step explanation:
the tenths of cm are 10,20,30 etc.
Answer: 
Step-by-step explanation:
Find the x-coordinate of the vertex with this formula:

In this case:

Substituting values, we get:
Now we can substitute the coordinates of the vertex into the equation
and then solve for "c".
Then:

Answer:
hope this helps..........
Answer:
8 centimeters.
Step-by-step explanation:

Divide 3 both sides:

Multiply 4 on both sides:

8cm on the map represents 20km.
We will use this formula = 1/2 × base × height
And thus
1/2 × 8 ×8