If something cost $3.50 and you give them $10. what is your change?

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Plz hurry evaluate the expression a+b where a=8 and b=19