3.14 that is the answer i divided 22 by 7 <span />
Answer:

Step-by-step explanation:
To write the equation using a center and a radius, use the vertex form of the equation.

Substitute the values h=10 and k=4 into the equation along with r = 4.

Technically only 1...
If you have to use 4 rows there is only one option;
1 1 1 2
1 1 2 1
1 2 1 1
2 1 1 1
Each number represents the total kids in a row.
1st number is row 1 second number is row 2 etc.
If you can use 2 or 3 rows there are some more answers.
Answer:
<h2>
y - 5 = -3(x + 1)</h2>
Step-by-step explanation:
Parallel lines has the same slope.
The equation of a line that passing through point (x₁, y₁) with a slope of m is:
y - y₁ = m(x - x₁)
m = -3
(-1, 5) ⇒ x₁ = -1, y₁ = 5
Therefore the equation:
y - 5 = -3(x + 1)
C^2+7 would equal 88. the first equation states that C=9, so you can just plug in 9 for C