You and your family go out to eat for a nice, long, Saturday brunch. It’s a restaurant you don’t normally go to, and it’s actually more expensive than you guys usually spend. The service is very good, and the food is quite yummy! The total bill comes to $69.06 after tax, and $65.00 before tax. How much tip do you leave?

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

c

step-by-step explanation:

i think because what else can be a sample of every member

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d