Answer:
Danny offers better deal with $11.66 per hour for swimming lesson.
Explanation:
Given:
Danny Charges $35 for 3 hours
Martin charges $24 for 2 hours
We will find the per hour charges of both,
It can be found by using Unitary method
Charges of 1 hour for Danny =

Charges of 1 hour for Martin =

Hence from above we can say that Danny deal is best as his charge for per hour is 34 cents less than charge of Martin.