Ineed with both questions :
part a:
a coffee shop uses 4 l of milk every day. if there are 15 l of milk in the fridge, after how many days will more milk need to be purchased? explain how you know

part b:
if only half as much milk is used each day, after how many days will more milk need to be purchased?

the k side

step-by-step explanation:

plese mark mde brainliest!

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: