At the skating rink. David paid 18.5 and skated for 3 hours while Jennifer skated for 2 hours and paid $ 14.0 Both of the prices include the price of renting skates

What is the cost per hour in general
What is the initial rental cost in general

To find the cost per hour in general, we can calculate the rates paid by David and Jennifer per hour:

David paid $18.5 for 3 hours, so his rate per hour is $18.5 / 3 = $6.17 per hour.
Jennifer paid $14.0 for 2 hours, so her rate per hour is $14.0 / 2 = $7.00 per hour.

To find the initial rental cost in general, we can calculate the difference between the total amount paid and the cost of skating for the given hours:

For David:
Initial rental cost = $18.5 - ($6.17 * 3) = $18.5 - $18.51 = $0.01

For Jennifer:
Initial rental cost = $14.0 - ($7.00 * 2) = $14.00 - $14.00 = $0.00

Therefore, the cost per hour in general is $6.17 and the initial rental cost in general is $0.01.