Answer:
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.
Answer:
b = 28
Step-by-step explanation:
8*21 then 168/6 = 28
It could be 2,048 cause 4096 divided by 2 equals 4096
Answer:

Step-by-step explanation:
Collect like terms

Collect like terms again and you get 
Hope this helps ʕ•ᴥ•ʔ
87 58%
_ _
x 100% = 8700/58 = 150.862069 = 150.86