Dave rented a limousine for his wife's birthday. the hourly rate is $70. they used the limousine for 4 hours, plus dave gave the driver a 20% tip. how much did he spend in total for the hourly charges plus tip? question options: dave gave the driver a 20% tip. how much did he spend in total for the hourly charges plus tip? question 2 options: a) $364 b) $224 c) $392 d) $336

5050 i think

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: