In 1846 the depth of the river was 5 feet deep. In 1847 it dropped to 4.6 feet.
This year, 1848, it rose to 6.6 feet.
Find the percent change in river depth & complete the
table.
PLZ NEED HELP ASAP

Which function has an inverse that is also a function? a.{(-4,3), (-2, 7), (-1,0), (4, -3), (11, -7)} b.{(-4, 6), (-2, 2), (-1, 6), (4,2), (11, 2)} c.{(-4,5), (-2, 9), (-1,8), (4, 8), (11,4)} d.{(-4,4), (-2, -1), (-1,0), (4, 1), (11, 1)}