Which of the following is a secant? a. ac b. ef c. gh d. de

It's B. EF 

The two points being intersected by the line is not on the circle however, the line still intersects two points and it passes through the circle. That clearly shows a secant line. 

AC is the diameter. (It's the line that divides the circle in half)
GH is a chord. (It is just a part of a secant. It connects two points on the circle.)
DE is a line segment.  (It's a part of tangent line since it lies outside the circle)

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