dum math... um Chile anyways so please help me

Answer:
23
Step-by-step explanation:
as x goes up by 1
y goes up by 3
therefore each time x increases y increases
x = 4 y = 17
x = 5 y = 20
x = 6 y = 23
Answer:
It would cost 23 dollars to go on 6 rides
Step-by-step explanation:
The rate of change is +3 so you need to add 3 every time.