When I was six my brother was half my age. next year if I turn 40 how old will my brother be?

37

Step-by-step explanation:

You were 6 and he was half which made him 3

So you’re gonna turn 40 he’s gonna be three years younger than you which is 37

Hope I helped

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.