Answer:
50% increase.
Step-by-step explanation:
(New Value - Initial Value)/(Initial Value) * 100 = percentage increase or decrease
(The formula)
If he starts out with $25 and to enter is $5 then he will be left with $20. 0.80 per ride then he can ride 25 times by diving 20 by 0.80
Ricardo is not correct because the temperature is actually getting colder (idk if I need to explain it more). The difference is -12 F