What is a better buy: 3 bagels for $2.85 or 5 bagels for $4.00?

5 bagels for $4!

Step-by-step explanation: if you buy 3 bagels for $2.85, that’s $.95 per bagel, now if you buy 5 bagels for $4, that’s $.80 per bagel!

a and c

step-by-step explanation:

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: