Respuesta :

Answer:

an element, feature, or factor that is liable to vary or change.

13a+1.50r=x

x is that amount you can get on

you can get on 15 rides !!!

Step-by-step explanation:

Answer:

an element, feature, or factor that is liable to vary or change.

13a+1.50r=x

x is that amount you can get on

you can get on 15 rides