What is the result to 4.4a-7.3

In the diagram of circle o, what is the measure of zabc?

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64