the vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

45+10x = y

Step-by-step explanation:

$45 - - stays the same no matter what so that's constant.

$10 - - this varies dependent on the number of vaccinations your dog needs, so you'd use a variable to represent the number of vaccinations (in this case I'm using variable "x").

So, for example if your dog needed 7 vaccinations, it would be: 45+10 (7) = y - - answer being $115.