Me !
a fruit stand had 36 oranges, 28 lemons, and 16 grapefruits.

what was the ratio of oranges to the total pieces of fruit?

a.
9 : 11

b.
9 : 20

c.
1 : 2

d.
9 : 7

5x+2x=49

7x=49

x=7. 35 apples

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: