Everything is included in the picture

after solving the answer is:

2187x^14y^42

Step-by-step explanation:

We need to find (3x^2y^6)^7

We can solve this by using exponents law (a^m)^n = a^mn

(3x^2y^6)^7 = (3)^7.(x^2)^7.(y^6)^7

(3x^2y^6)^7 = 2187x^14y^42

So, after solving the answer is:

2187x^14y^42

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.