If work is shown you'll be marked brainliest row #of students 1 4 2 7 3 10 4 13 which formula can be used to find the number of students seated in any given row? a. an= 4n b. an= 4n – 1 c. an= n + 3 d. an= 3n + 1

I believe its asking you the formula to find the rows numbers moving forward

Examle row 5 will be 16, I believe that is B. 4n - 1

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.