Heather took part in a dance marathon. She received each donation as either a one-time amount or an amount for each hour she danced. Heather received $956 in one-time donations and danced for a total of 12 hours. She raised a total of $1,452.80. Which equation represents this situation, where x is the amount Heather received for each hour she danced?

i dont know

step-by-step explanation:

step-by-step explanation:

mean or average is 40.6

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:

1.30

step-by-step explanation: