A Horizontal axis: sales, in thousands; vertical axis: dollars, in hundreds
B Horizontal axis: sales, in hundreds;
vertical axis: dollars, in thousands
C Horizontal axis: dollars, in thousands;
vertical axis: sales, in hundreds
D Horizontal axis: dollars, in hundreds;
vertical axis: sales, in thousands

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

can you post the graph?

the answer is b 4pi/3

got it down chief.

answer: the up tack or falsum is a constant symbol used to represent a logical constant denoting "false" in logic.