Iwill mark as !

a cafe only sells two types of sandwiches, turkey and steak. the cafe charges $4 for turkey sandwiches and $6 for steak sandwiches. last month, the cafe sold $4524 worth of sandwiches. the cafe sold a total of 925 sandwiches.

how many turkey sandwiches did they sell?

40 x 50 = 2000

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: