Answer:
Kim has the highest pay rate in dollars per hour
Explanation:
we know that
To find out the unit pay rate divide the total earning by the total time
so
Nina earns $117.60 for hours 14 of work

Ty earns for $148.50 hours 18 of work

Kim earns for $137.60 hours 16 of work


therefore
Kim has the highest pay rate in dollars per hour