Part 1)
Let
x--------> the cost of each bus ride
we know that

Solve for x
Divide both sides by



therefore
the answer part 1) is
The cost of each bus ride is

Part 2)
Find the number of Elisa's withdrawals
Divide the total withdrew by the withdrew at a time
so

Find the number of Francis's withdrawals
Divide the total withdrew by the withdrew at a time
so


therefore
the answer Part 2) is
the greatest number of withdrawals were made by Elisa