Plz me, just tell me how i can do this!

You will need to use the Pythagorean Theorem, actually a derivative of it sometimes called the "distance formula" to find the length of the segments between two points.  Mathematically the distance is:

d^2=(x2-x1)^2+(y2-y1)^2

d=√(dx)^2+(dy)^2)   

Do the math. she originally had 50 dollars on her gift card and she had 12 dollars left on her gift card after she finished her shopping spree. if you subtract 50 minus 12 you get thirty eight dollars as your answer. so therefore, ciara spent 38 dollars total o