Step 1: C. Step 2: A Step 3: B
Best to look up the formula for the surface area of a sphere and then find it:
A = 4πr^2, where r is the radius of the sphere. Then,
A = 4π(15 in)^2 = 4(3.14)(225 in^2) = 2826 in^2 (answer)
This is represented by the formula given in the lower left.
Suppose the line is y=mx+b
when x=3, y=15, so 15=3m+b
when x=-1, y=-13, so -13=-m+b
solve the system of these two equation, you get m=7, b=-6
so the linear equation is y=7x-6
<u>Given</u>:
The given expression is 
We need to multiply the terms.
<u>Multiplication of the terms:</u>
Before multiplying the terms, first we shall find the factors of the quadratic equations.
Thus, we have;

Factor out the common terms, we get;

Let us cancel the common terms from the above expression.
Thus, we have;

Simplifying, the term, we get;

Now, we shall multiply the terms.
Hence, multiplying the terms, we get;

Thus, the multiplied value of the given expression is 
B because it is moved but doesn’t change size