Slide a answer need help fr

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Which expression gives you the distance between the points (5,1)and(9,-6)