Mr. Degaldo sells sub sandwiches. He spends $400 on 200 subs that he sells for $5 each over the week . On wednesday, his refrigerator breaks, and he has only sold 90 subs. How much profit does Mr. Degaldo make.

he made $50 in profits

Step-by-step explanation:

$5 x 90 subs = $450

$450 - $400 = 50

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:

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: