The relationship between income (I), in dollars, and the time (h), in hours, for 2 different jobs is represented. Compare the hourly rates of Job A and Job B. Which job offers a higher rate per hour and by how much?

A. Job A pays $5.25 more per hour than Job B.

B. Job A pays $4.75 more per hour than Job B.

C. Job B pays $5.25 more per hour than Job A.

D. Job B pays $4.75 more per hour than Job A.

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.