Adiver went 25. 65 feet below the surface of the ocean and then 16.5 think it further down here then rose 12.45 feet right and solve an expression to find a drivers new depth

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

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Which of these tools or constructions is used to inscribe a hexagon inside a circle?