3. at the mall, leona bought a t-shirt, a water, and a book for a total of $32. the book cost $12. the water cost $4. how much did the t-shirt cost? (a) what question are we trying to answer? (b) let x represent the unknown information. write an addition equation that models the problem. (c) solve the equation for x.

We are trying to find out how much the T-shirt costs

12+4+y=32

y=26

Hope this helps!

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.

the answer would be a 24

step-by-step explanation:

c=2πr=2·π·3=24