Add or subtract. write each sum or difference in simplest form. 11. 3/8 + 5/24 12. 1/20 + 5/12 13. 9/20 - 1/4 14. 9/10 - 3/14 15. 3 3/8 + 5/12 16. 5 7/10 - 5/18

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)