(PLEASE HELP DUE SOON)

Find the area of the shaded region

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2