Triangle JKL has been reflected over the y-axis. Which of the following best describes the relationship between the y-axis and the line connecting K to K′? They share the same midpoints.
They are diameters of concentric circles.
They are parallel and congruent.
They are perpendicular to each other.

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.

Element 17 is chlorine it is a group 7 element(halogen) and belongs to period 3 of the periodic table