Consider the phrase "the number of blue markers in a drawer is 4 more than twice the number of red markers." write an expression for the total number of markers in the drawer using only the variable r, which will represent the number of red markers.
first, write an expression for the number of blue markers in the drawer.
what is the expression for the total number of markers in the drawer?
enter your answer in the box.

step-by-step explanation:

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.