How do we solve percent problems and change percent error problems plz

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?