X+ y = k
x - y = k

the solution to the system shown is

(0, k)
(2, 2)
(k, 0)

What is the greater volume 72 quarts or 23 gallons

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?